The mutual inductance is 4 mH between the primary and secondary of an induction coil. A current of 4 A cuts off in 10-3 s. The magnitude of the induced emf is:
A. 1.6 V
B. 16 V
C. – 1.6 × 10-3 V
D. – 1.6 V
Answer:B
The mutual inductance is 4 mH between the primary and secondary of an induction coil. A current of 4 A cuts off in 10-3 s. The magnitude of the induced emf is:
A. 1.6 V B. 16 V C. – 1.6 × 10-3 V D. – 1.6 V