Physics-Self & Mutual Induction
NEET Physics Self & Mutual Induction MCQ Question
Type: MCQ-numerical-Hard-Class 12
A coil of self-inductance 5 H is connected to a battery. If the rate of change of current through the coil is 2 A/s, what is the emf induced across the coil?
A
10 V
B
5 V
C
5 V
D
1 V
Correct Answer
Option A
Detailed Explanation
The emf induced in a coil due to self-induction is given by ε = -L (di/dt). With L = 5 H and di/dt = 2 A/s, the induced emf is ε = -5 * 2 = -10 V. The magnitude is 10 V.
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