An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be______________?
A. 64 A/s
B. 32 A/s
C. 16 A/s
D. 4 A/s
A. 64 A/s
B. 32 A/s
C. 16 A/s
D. 4 A/s