alleryStart learning →Two coils have M = 0.5 H. Primary current changes at 4 A/s. Secondary emf?
A2 V
B8 V
C0.125 V
D4.5 V
Answer & Solution
Correct answer: A. 2 V
Secondary emf magnitude = M di/dt = 0.5 x 4 = 2 V.
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