When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of
A. 2 joules
B. 4 joules
C. 6 joules
D. 8 joules
Answer:D
When 4 volts e.m.f. is applied across a 1 farad capacitor, it will store energy of
A. 2 joules B. 4 joules C. 6 joules D. 8 joules