07:21

A light bulb and an open coil inductor are connected to an ac source through a key as shown in Fig.

05:02

A 15.0 µF capacitor is connected to a 220 V, 50 Hz source. Find the capacitive reactance and the cur

03:08

A pure inductor of 25.0 mH is connected to a source of 220 V. Find the inductive reactance and rms

09:27

A lamp is connected in series with a capacitor. Predict your observations for dc and ac connections.

04:47

A light bulb is rated at 100W for a 220 V supply. Find (a) the resistance of the bulb; (b) the peak

02:28

A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0

03:16

Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an

06:35

A horizontal straight wire 10 m long extending from east to west is falling with a, speed of 5.0 m/s

02:42

A 1.0 m long metallic rod is rotated with an angular frequency of 400 rad s¹ about an axis normal to

09:29

A rectangular wire loop of sides 8 cm and 2 cm with a small cut is moving out of a region of uniform

07:03

A long solenoid with 15 turns per cm has a small loop of area 2.0 cm² placed inside the solenoid nor

05:23

Use Lenz's law to determine the direction of induced current in the situations described by Fig. 6.1

05:12

Kamla peddles a stationary bicycle. The pedals of the bicycle are attached to a 100 turn coil of are

07:15

Obtain the expression for the magnetic energy stored in a solenoid in terms of magnetic field B area

07:48

Two concentric circular coils, one of small radius r, and the other of large radius r₂, such that r₁

07:16

A wheel with 10 metallic spokes each 0.5 m long is rotated with a speed of 120 rev/min in a plane no

09:25

A metallic rod of 1 m length is rotated with a frequency of 50 rev/s, with one end hinged at the cen

15:27

A closed loop is held stationary in the magnetic field between the north and south poles of two perm

06:34

Figure 6.7 shows planar loops of different shapes moving out of or into a region of a magnetic field

09:20

A circular coil of radius 10 cm. 500 turns and resistance 2 is placed with its plane perpendicular

07:59

A square loop of side 10 cm and resistance 0.5 is placed vertically in the east-west plane. A unifor

10:48

Consider Experiment 6.2. (a) What would you do to obtain a large deflection of the galvanometer? (b)

07:45

If the bar magnet in exercise 5.13 is turned around by 180°, where will the new null points be locat

08:27

A short bar magnet placed in a horizontal plane has its axis aligned along the magnetic north-south

42:42

Classification Of Magnetic Material | Chapter 5 Magnetism And Matter | Class 12 Physics | Ncert

32:48

Magnetising Intensity | Magnetisation Intensity | Magnetic Permeability | Magnetic Susceptibility

23:07

Torque on a Bar Magnet Placed in a Magnetic field | Chapter 5 Class 12 Physics | Ncert

17:37

Magnetic Flux | Gauss's Law for Magnetism | Chapter 5 Physics | Ncert

31:48

Magnetic Field Due to Bar Magnet | Chapter 5 Magnetism And Matter | Physics Ncert

19:17

Magnetic Dipole Moment | Chapter 5 Magnetism and Matter | Physics Ncert

06:45

A short bar magnet has a magnetic moment of 0.48 J T¹, Give the direction and magnitude of the magni

06:07

A closely wound solenoid of 2000 turns and area of cross-section 1.6 x 10-⁴m², carrying a current o

09:23

A bar magnet of magnetic moment 1.5 J T¹ lies aligned with the direction of a uniform magnetic field

03:20

If the solenoid in Exercise 5.5 is free to turn about the vertical direction and a uniform horizonta

04:39

A closely wound solenoid of 800 turns and area of cross section 2.5 x 10⁴ m² carries a current of 3.

04:22

A short bar magnet of magnetic moment m = 0.32 JT¹ is placed in a uniform magnetic field of 0.15 T.

02:44

A short bar magnet placed with its axis at 30° with a uniform external magnetic field of 0.25 T expe

14:44

A solenoid has a core of a material with relative permeability 400. The windings of the solenoid are

14:29

Magnetic field lines show the direction (at every point) along which a small magnetised needle align

15:40

Figure shows a small magnetised needle P placed at a point O. The arrow shows the direction of i

27:40

Moving Coil Galvanometer | Chapter 4 Moving Charges and Magnetism | Class 12 Physics | Ncert

16:18

Must every magnetic configuration have a north pole and a south pole? What about the field due to a

16:36

What happens if a bar magnet is cut into two pieces: (i) transverse to its length, (ii) along its le

38:05

Torque on a Rectangular Current loop in a Uniform Magnetic Field | Class 12 Physics | Ncert

06:05

In Exercise 4.11 obtain the frequency of revolution of the electron in its circular orbit. Does the

08:35

In a chamber, a uniform magnetic field of 6.5 G (1 G = 10‐⁴ T) is maintained. An electron is shot in

05:53

Two moving coil meters, M₁ and M₂ have the following particulars:R₁ = 10 Ω. Ν₁ = 30,A₁ = 3.6 x 103 m

06:12

A square coil of side 10 cm consists of 20 turns and carries a current of 12 A. The coil is suspende

02:56

A closely wound solenoid 80 cm long has 5 layers of windings of 400 turns each. The diameter of the

04:37

Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direct

03:44

A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The

02:38

What is the magnitude of magnetic force per unit length on a wire carrying a current of 8 A and maki

03:13

A horizontal overhead power line carries a current of 90 A in east to west direction. What is the ma

02:53

A long straight wire in the horizontal plane carries a current of 50 A in north to south direction.

02:00

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 c

02:19

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A.

04:48

In the circuit (Fig. 4.23) the current is to be measured. What is the value of the current if the am

16:47

A current-carrying circular loop lies on a smooth horizontal plane. Can a uniform magnetic field be

16:32

A 100 turn closely wound circular coil of radius 10 cm carries a current of 3.2 A. (a) What is the f

33:41

Force Between Two Parallel Current Carrying Conductor | Moving Charges And Magnetism | Ncert