The current passing through a choke coil of 5 henries is decreasing at the rate of 2 amp/sec. The emf developed across the coil is_______
A. 10 V
B. -10 V
C. 2.5 V
D. -2.5 V
Answer:A
The current passing through a choke coil of 5 henries is decreasing at the rate of 2 amp/sec. The emf developed across the coil is_______
A. 10 V B. -10 V C. 2.5 V D. -2.5 V