Question

From a battery of potential diffrence 9 Volt Current 4 A clows through a wire for 20 Mins find:
1) The electical energy supplied by the body.
2)The power Spent​

Answer 1

Answer:

Hey mate here is your answer

Given:-

Voltage = 9V

Current = 4A

Time = 20min = 1200sec

To find:-

(i) Electrical energy supplied by the body

By applying, I = Q/T

Q = I×T

= 4×1200

= 4800C

By applying V = W/Q

W = V×Q

= 9×4800

= 43200J

(i) Power spent

By applying, P = W/T

= 43200/1200

= 36W.