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NCERT Class XII Chapter
Electromagnetic Induction
Questions With Solutions

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Question : 8
Total: 17
Current in circuit falls from 5.0 A to 0.0 A in 0.1s. If an average emf of 200 V induced, give an estimate of the self-inductance of the circuit
Solution:  
Let ‘L’ is the coefficient of self inductance, the back emf
ε = - L
dI
dt
200 = - L
(If−Ii)
t
 or 200 = - L
(0−5)
0.1
L = 4 H
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