NEETPhysics-Electromagnetic Induction
NEET Physics Self Induction MCQ Question
Type: MCQ-numerical-Medium-Class 12
When the current changes from +2 Å to –2 Å in 0.05 second, an e.m.f. of 8 V is induced in a coil. The coefficient of self-induction of the coil is
A
0.1 H
B
0.2 H
C
0.4 H
D
0.8 H
Correct Answer
Option B
Detailed Explanation
Using the formula ε = -L(di/dt), where di = 4 Å and dt = 0.05 s, solving gives L = 0.2 H.
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