Current of 5 ampere is flowing in wire for 2 minutes when p.d. of 20 volt is connected across it; the work done during this is
A. 1.2× 102 J
B. 1.2× 103 J
C. 1.2 × 104 J
D. 1.2 × 104 J
Answer:D
Current of 5 ampere is flowing in wire for 2 minutes when p.d. of 20 volt is connected across it; the work done during this is
A. 1.2× 102 J B. 1.2× 103 J C. 1.2 × 104 J D. 1.2 × 104 J