@PurushottamJhaAzad-qg8fe

4 weeks ago

1. I = Q/t → (Correct) Ohm’s law definition of current (I = Charge/Time).


2. Q = ne → (Correct) Charge formula (Q = number of electrons × charge of one electron).


3. V = W/Q → (Correct) Potential difference formula (Voltage = Work done per unit charge).


4. V = IR → (Correct) Ohm’s Law (Voltage = Current × Resistance).


5. R = ρ × (L/A) → (Correct) Resistance formula (R depends on resistivity (ρ), length (L), and cross-sectional area (A)).



Series and Parallel Resistance:

6. Rs = R1 + R2 + R3 → (Correct) Resistance in a series circuit (sum of individual resistances).


7. 1/Rp = 1/R1 + 1/R2 + 1/R3 → (Correct) Parallel resistance formula (reciprocal sum of individual resistances).



Heat Energy Formulas (Joule’s Law of Heating):

8. H = V × Q → (Correct, but less commonly used)

H = VIt (Correct)

H = I²Rt (Correct)

H = V²t/R (Correct)




Power Formulas:

9. P = W/t → (Correct) Power is work done per unit time.

P = VI (Correct) Power = Voltage × Current.

P = I²R (Correct) Alternative power formula.

P = V²/R (Correct) Another alternative power formula.



10. E = P × t → (Correct) Energy = Power × Time.



SI Units and Measuring Devices:

All SI units and measuring devices mentioned are correct.

1 kWh = 3.6 × 10⁶ J is correctly stated.

1 HP = 746 W is also correct.


Minor Issues:

H = V × Q is not wrong, but it is not commonly used in Class 10 derivations.

"Rho" (ρ) should be written properly as ρ (Greek letter for resistivity).

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