Physics Solutions|Tamil|MCQ Series|NEET|JEE|Tamil|Muruga MP#mcq#physics#neet#jee#tamil
354 videos • 12,668 views • by Open Your Mind With Muruga MP
1
The forces between two small charged spheres having charges of 1×10 −7 C and 2×10 −7 C placed 20cm
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2
If 10 9 electron move out of a body to another body every second, how much time is required to get
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3
The number of electrons that must be removed from an electrically neutral silver dollar to give it a
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4
A polythene piece rubbed with wool is found to have a negative charge of 6×10 −7 C. The number of
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5
An electron initially at rest falls a distance of 1.5cm in a uniform electric field of magnitude
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6
Two insulated charged metallic spheres P and Q have their centres separated by a distance of 60cm.
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7
Under the action of a given coulombic force the acceleration of an electron is ×1022m s−2. Then the
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8
Muruga MP| Coimbatore 🔥#murugamp#coimbatore
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9
A particle of mass m and charge −q enters the region between the two charged plates initially moving
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10
A coin is made up of Al and weighs 0.75g. It has a square shape and its diagonal measures 17mm. It
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11
The ratio of magnitude of electrostatic force and gravitational force for an electron and proton is
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12
If an object of mass 1 kg contains 4 × 10 20atoms. If one electron is removed from every atom of the
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13
The nucleus of helium atom contains two protons that are separated by distance 3.0×10−15m. The
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14
Two point charges of +3μC and +4μC repel each other with a force of 10N. If each is given an
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15
Three charges of equal magnitude q is placed at the vertices of an equilateral triangle of side l.
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16
The dimensional formula for electric intensity is
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17
The electrostatic attracting force on a small sphere of charge 0.2μC due to another small sphere of
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18
Four point charges are paced at the corners of a square ABCD of side 10cm, as shown in fig
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19
Take the particle as an electron projected with velocity v x = 4 × 10 6 m s − 1. If electric field
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20
A force of 2.25N acts on a charge of 15×10−4C. The intensity of electric field at that point is then
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21
Five equal charges each of value q are placed at the corners of a regular pentagon of side a. The
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22
A particle of mass 10−3kg and charge 5μC is thrown at a speed 20 m s−1 against a uniform electric
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23
The acceleration for electron and proton due to electrical force of their mutual attraction when
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24
Consider the charges q,q and −q placed at the vertices of an equilateral triangle of each side l.
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25
Five equal charges each of value q are placed at the corners of a regular pentagon of side a. What
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26
Five equal charges each of value q are placed at the corners of a regular pentagon of side a. What
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27
The electric field that can balance a charged particle of mass 3.2×10−27kg is (Given that the charge
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28
An oil drop of 10 excess electrons is held stationary under a constant electric field of 3.65×104NC
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29
An electric dipole consists of charges ±2.0×10−8C separated by a distance of 2.0×10−3m.It is placed
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30
A point charge +20μC is at a distance 6cm directly above the centre of a square of side 12cm as
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31
A circular plane sheet of radius 10cm is placed in a uniform electric field of 5×105NC−1, making an
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32
A uniform electric field E=2×103NC−1 is acting along the positive x-axis. The flux of this field
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33
Two point charges of 1 μC and −1 μC are separated by a distance of 100 A˚. A point P is at distance
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34
The electric field components in the given figure are Ex=αx1/2,Ey=Ez=0 in which α=800NC−1m−1/2.
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35
A metallic spherical shell has an inner radius R1 and outer radius R2. A charge Q is placed at the
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36
The dimensional formula for electric flux is? #murugamp#neetjee
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37
Two infinite plane parallel sheets, separated by a distance d have equal and opposite uniform charge
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38
The total flux through the faces of the cube with side of length a if a charge q is placed at corner
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39
The SI unit of electric flux is#murugamp#neetjee
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40
A point charge 4μC is at the centre of a cubic Gaussian surface 10cm on edge. Net electric flux thro
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41
A uniformly charged conducting sphere of 4.4m diameter has a surface charge density of 60μC m−2.
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42
Two charges +20μC and −20μC are placed 10mm apart. The electric field at point P, on the axis of the
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43
Shown in the figure is a shell made of a conductor. It has inner radius a and outer radius b, and
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44
A uniform electric field E=2×103NC−1 is acting along the positive x-axis. The flux through the same
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45
In a certain region of space, electric field is along the z-direction throughout. The magnitude of
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46
A rod of length 2.4m and radius 4.6mm carries a negative charge of 4.2×10−7C spread uniformly over
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47
Two parallel infinite line charges +1 and −1 are placed with a separation distance R in free space.
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48
An electric dipole is placed at an angle of 30o with an electric field intensity 2×105 N C -1. It
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49
The position of an object moving along x-axis is given by x = a + bt2, where a = 8.5 m and b = 2.5 m
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50
A body moving along a straight line travels one third of the total distance with a speed of 3.0ms−1
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51
A boy walks on a straight road from his home to a market 2.5 km with a speed of 5 km h−1. Finding
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52
A charged ball B hangs from a silk thread S which makes an angle θ with a large charged conducting
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53
There is a solid sphere of radius R having uniformly distributed charge throughout it. What is the
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54
The potential at a point due to a charge of 5 x 10−7 C located 10 cm away is:
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55
The potential at a point due to a charge of 5 x 10−7 C located 10 cm away is 4.5V X 104V and work
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56
The electric field intensity at a point P due to point charge q kept at a point Q is 24 N C−1 and
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57
Two points A and B are located in diametrically opposite directions of a point charge of +2 μ C at
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58
A charge +q is placed at the origin O of x-y axes as shown in the figure. The work done in taking a
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59
As per this diagram a point charge +q is placed at the origin O. Work done in taking another point
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60
The electric field and the potential of an electric dipole vary with distance r as
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61
The distance between H+ and Cl− ions in HCl molecules is 1.38A∘. The potential due to this dipole at
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62
Two tiny spheres carrying charges 1.8 μC and 2.8μC are located at 40 cm apart. The potential at the
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63
Four equal charges q each are placed at four corners of square of side a each. Work done in carrying
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64
A cube of side x has a charge q at each of its vertices. The potential due to this charge array at
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65
A hexagon of side 8 cm has a charge 4 μC at each of its vertices. The potential at the centre of the
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66
The work done in carrying a charge q once round a circle of radius r with a charge Q at the centre
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67
A system consists of two charges 4 μC and -3 μC with no external field placed at (-5 cm, 0, 0) and
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68
Two charges of magnitude 5nC and −2nC, one placed at points (2cm,0,0) and (xcm,0,0) in a region
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69
In a quark model of elementary particles, a neutron is made of one up quark of charge ⅔ε and two do
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70
A molecule of a substance has a permanent electric dipole moment of magnitude 10−30cm. A mole of
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71
An electric dipole of length 20cm having ±3×10−3C charge placed at 60o with respect to a uniform ele
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72
Two metal spheres, one of radius R and the other of radius 2R, both ha same surface charge density σ
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73
A parallel plate capacitor has two square plates with equal and opposite charges. The surface charge
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74
A spherical capacitor consists of two concentric spherical conductors, held in position by suitable
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75
A parallel plate capacitor with air between the plates has a capacitance of 8pF. the separation
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76
A car starts from rest, attains a velocity of 36 km h−1 with an acceleration of 0.2 m s−2, travels
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77
A particle moving along a straight line has a velocity v m s−1, when it cleared a distance of x m.
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78
A car moving along a straight highway with speed of 126Km/h is brought to a stop distance of 200m.
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79
The position x of a particle with respect to time t along x-axis is given by x=9t^2−t^3 where x is
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80
The capacitance of a parallel plate capacitor with air as medium is 3μF. With the introduction of a
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81
Two charged conducting spheres of radii a and b are connected to each other by a wire. The ratio of
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82
A network of four 20 μF capacitors is connected to a 600V supply as s in the figure.The equivalent
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83
A network of four 20 μF capacitors is connected to a 600V supply as s in the figure.The equivalent
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84
Two capacitors of 2 μF and 4 μF are connected in parallel. A third capacitor of 6 μF is connected in
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85
The charge on 3μF capacitor shown in the figure is
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86
Three capacitors each of capacity 4 μF are to be connected in such a way that the effective capacito
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87
The equivalent capacitance for the network shown in the figure is:
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88
A capacitor of capacitor of capacitance 700 pF is charged by 100 V battery. The electrostatic energy
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89
A 16 pF capacitor is connected to 70 V supply. The amount of electric energy stored in the capacitor
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90
A capacitor is charged through a potential difference of 200 V, when 0.1 C charge is stored in it.
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91
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the
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92
A stone is thrown in vertically upward direction with a velocity of 5 ms −1 . If the acceleration of
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93
A stone is thrown vertically upward with a speed of 49 ms−1. Find the velocity of the stone one
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94
A ball is dropped from a high rise platform at t=0 starting from rest. After 6 seconds another ball
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95
An object is thrown vertically upwards to a height of 10 m. Calculate its (a) velocity with which
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96
The total energy stored in the condenser system shown in the figure will be#tamil#murugamp
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97
Two capacitors, 3.0 μF and 4.0 μF, are individually charged across a 6.0 V battery. After being
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98
A parallel-plate capacitor has plate area 25.0 cm2 and a separation of 2.00 mm between the plates.
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99
In the given figure find the equivalent capacitance between A and B
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100
Figure shows charge (q) versus voltage (V) graph fro series and parallel combination of two given
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101
Eight drops of water each having a charge of 3x10^-9 having surface potential 2V coalease to form a
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102
A capacitor with capacitance 5μF is charged to 5μC. If the plates are pulled apart to reduce the
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103
A parallel plate capacitor is made of two dielectric blocks in series.One of the blocks has thicknes
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104
Ten million electrons pass from point P to point Q in one micro second.The current and its direction
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105
A current in a wire is given by the equation, I=2t 2 −3t+1, the charge through cross section of wire
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106
The current in a wire varies with time according to the equation I=4+2t, where I is in ampere and t
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107
In an atom electrons revolves around the nucleus along a path of radius 0.72Ã making 9.4 × 1018
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108
A wire of resistance 4Ω is used to wind a coil of radius 7cm. The wire has a diameter of 1.4mm and
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109
a cyclindrical rod is reformed to half of its original length keeping volume constant. if its resist
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110
A wire with 15Ω resistance is stretched by one tenth of its original length and volume of wire is
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111
Space between two concentric spheres of radii r 1 and r 2 ,with a material of resistivity ρ
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112
A charged particle having drift velocity of 7.5×10−4m s−1 in electric field of 3×10−10V m−1, mobilit
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113
The current density varies with radial distance r as J=ar2, in a cylindrical wire of radius R.The
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114
The resistance of a heating element is 99Ω at room temperature. What is the temperature of the
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115
The resistance of wire in a heater at room temperature is 65Ω. When the heater is connected to a
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116
A wire has a resistance of 2.5 Ω at 28 o C and a resistance of 2.9 Ω at 100 o C. The temperature
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117
The resistance of the wire in the platinum resistance thermometer at ice point is 5Ω and at steam
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118
A heater coil is rated 100w,200v. It is cut into two identical parts. Both parts are connected
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119
If the voltage across a bulb rated 220 V,100 W drops by 2.5% of its rated value the percentage of
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120
In the circuit shown in figure heat developed across 2Ω,4Ω and 3Ω resistances are in the ratio of.
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121
Two 2Ω resistances are connected in parallel in the circuit X and inseries in circuit Y.The battery
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122
Five equal resistances of 10Ω are connected between A and B as shown in figure. The resultant
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123
The correct combination of three resistances 1Ω, 2Ω and 3Ω to get equivalent resistance 11/5 Ω is?
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124
equivalent resistance of the given network between point A and point B is
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125
n resistors each of resistance R first combine to give maximum effective resistance and then combine
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126
For the circuit shown in figure given below, the equivalent resistance between points A and B is
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127
A copper cylindrical tube has inner radius a and outer radius b. The resistivity is ρ. The resistanc
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128
Two metal wires of identical dimension are connected in series. If σ 1 and σ 2 are the conducti
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129
(a) Three resistors 2Ω,4Ω and 5Ω are combined in parallel. What is the total resistance of the
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130
The reading of ammeter shown in figure is?
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131
Three resistors of resistances 2Ω,3Ω and 4Ω are combined in series. What is the resistance of the
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132
In the circuit shown in the given figure, the resistances R 1 and R 2 are respectively
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133
A battery of emf 15V and internal resistance of 4Ω is connected to a resistor. If the current in the
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134
An infinite ladder network of resistances isconstructed with 1Ω and 2Ω resistance as shown in figure
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135
The battery of a trunk has an emf of 24V. If the internal resistance of the battery is 0.8Ω. What is
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136
A battery having 12V emf and internal resistance 3Ω is connected to a resistor. If the current in
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137
When a current of 2A flows in a battery from negative to positive terminal, the potential difference
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138
A constant force acting on a body of mass of 5kg change its speed from 5 ms −1 to 10 ms −1 in 10
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139
A bullet of mass 40 g moving with a speed of 90ms −1 enters a heavy wooden block and is stopped afte
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140
If a body under the action of force (6i+8j-10k)N , acquires an acceleration of magnitude 5ms−2
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141
A body of mass 0.4 kg starting at an origin at t=0 with a speed of 10ms −1 in the positive x-axis
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142
If the force on a rocket moving with a velocity of 300 m/s is 210 N.Then the rate of fuel combustion
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143
A batsman hits back a ball straight in the direction of the bowler without changing its initial spee
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144
A stream of water flowing horizontally with a speed of 15ms-1 gushes out of a tube of cross-section
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145
In the given circuit the potential at point B is zero, the potential at points A and D will be.
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146
A current of 6A enters one corner P of an equilateral triangle PQR having 3 wires of resistances 2Ω
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147
7 V battery with internal resistance2Ωand3V batterywith internal resistance1Ω are connected to a 10Ω
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148
A circuit has a section ABC as shown in figure. If the potentials at points A, B and C are V 1 ,V 2
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149
In the circuit shown, the value of currents I 1 ,I 2 and I 3 are
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150
In Wheatstones network P=2Ω,Q=2Ω,R=2Ω and S=3Ω. The resistance with which S is to shunted in order
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151
Two cells ε 1 and ε 2 connected in opposition to each other as shown in figure. The cell ε 1
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152
Four resistances of 3Ω,3Ω,3Ω and 4Ω respectively are used to form a Wheatstone bridge. The 4Ω resist
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153
Four resistors are connected as shown in the figure. A 6 V battery of negligible resistance is conne
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154
Resistances P, Q, S and R are arranged in a cyclic order to form a balanced Wheatstone's network.
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155
In the shown figure, bridge is balanced, the current flowing through 2Ω resistance is
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156
In a meter bridge experiment, the ratio of the left gap resistance to right gap resistance is 2:3,
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157
A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right
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158
What is the value of unknown resistance R, if galvonometer shows null delection in the given meter
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159
In a potentiometer a cell of emf 1.5V gives a balanced point at 32cm length of the wire. If the cell
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160
3V potentiometer used for the determination of internal resistance of a 2.4V cell. The balance point
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161
In a potentiometer the balancing with a cell is at length of 220cm. On shunting the cell with a
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162
The potentiometer wire of length 200cm has a resistance of 20Ω. It is connected in series with a
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163
A potentiometer wire of length 100 cm has a resistance of 10 ohm. it is connected in series with a
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164
In the given circuit the internal resistance of the 18 V cell is negligible. If R 1 =400Ω,R3 =100Ω
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165
A heater is designed to operate with a power of 1000W in a 100V line. It is connected in combination
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166
A wire of resistance 27 Ohm is bent to form an equilateral triangle.The resistance across any two
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167
Four identical bulbs each rated 100 watt, 220 volts are connected across a battery as shown.
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168
In a conductor, if the number of conduction electrons per unit volume is 8.5×10 28 m-3 and mean free
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169
A straight wire having mass of 1.2 kg and length of 1 m carries a current of 5A. If the wire is
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170
A current of 10 A is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed
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171
The horizontal component of the Earth's magnetic field at a certain place is 3×10 −5 T and the
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172
A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal
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173
A charged particle is moving on circular path with velocity v in a uniform magnetic field B, if the
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174
The magnetic force per unit length on a wire carrying a current of 10 A and making an angle of 45 de
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175
An electron of energy 1800 eV describes a circular path in magnetic field of flux density 0.4 T
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176
Two α - particles have the ratio of their velocities as 3:2 on entering the field.
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177
An electron having momentum 2.4 X 10 −23 kg m s-1 enters a region of uniform magnetic field of 0.15T
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178
If an electron is moving in a magnetic field of 5.4×10−4 T on a circular path of radius 32 cm
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179
A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields
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180
A proton and an α -particle enter a uniform magnetic field perpendicularly with the same speed. If
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181
The energy of emergent protons in MeV from a cyclotron having radius of its dees 1.8 m and applied
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182
The operating magnetic field for accelerating protons in a cyclotron oscillator having frequency of
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183
An electron is moving in a cyclotron at a speed of 3.2×10 7 ms −1 in a magnetic field of 5×10-4T per
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184
A straight wire of mass 200g and length 1.5m carries a current of 2A. It is suspended in mid air by
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185
A circular coil of wire consisting of 100 turns each of radius 8 cm carries a current of 0.4 A. The
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186
A tightly wound 90 turn coil of radius 15 cm has a magnetic field of 4×10−4T at its centre
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187
The electric current in a circular coil of two turns produced a magnetic induction of 0.2 T at its
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188
A long straight wire in the horizontal plane carries a current of 50 A in north to south direction
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189
If a long straight wire carries a current of 40 A, then the magnitude of the field B at a point 15cm
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190
A solenoid of length 0.6 m has a radius of 2 cm and is made up of 600 turns If it carries a current
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191
A solenoid of length 50cm, having 100 turns carries a current of 2.5A. Find the magnetic field
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192
A 90 cm long solenoid has six layers of windings of 450 turns each. If the diameter of solenoid is
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193
The inner and outer radius of a toroid core are 28 cm and 29 cm respectively and around the core 370
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194
Two parallel wires 2 m apart carry currents of 2 A and 5 A respectively in the same direction
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195
Two long and parallel straight wires A and B carrying currents of 4 A and 7 A in the same
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196
A conductor of length 2 m carrying current 2A is parallel to an infinitely long conductor carrying
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197
Two straight wires A and B of lengths 10m and 12m carrying currents of 4.0 A and 6.0 A respectively
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198
A long straight wire carrying current of 30 A rests on a table.Another wire AB of length 1m,mass 3 g
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199
A 200 turn closely wound circular coil of radius 15 cm carries a current of 4 A
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200
A uniform conducting wire of length length 10a and resistance R is wound up into four turn as a
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