CUET · PHYSICS · PYQ PAPER 2023
The current in a solenoid changes from 0.0A to 10.0A in 0.1 sec. If an average emf of 2V is induced in the circuit, the value of self-inductance is:
- A 2 H
- B 0.02 H
- C 0.2 H
- D 20 H
Answer & Solution
Correct Answer
(B) 0.02 H
Step-by-step Solution
Detailed explanation
\( \varepsilon = L \frac{\Delta I}{\Delta t} \) \( 2V = L \frac{10.0A}{0.1s} \) \( L = \frac{2V \times 0.1s}{10.0A} = 0.02 H \)
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