Question

In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result. 

What current flows from the battery?

Answer 1

Given:
Time, t = 10 s
Charge, Q = 25 C
Energy delivered = Work done, W = 200 J 

Using the relation, I = Q/t,
I = 25/10 = 2.5 A
So, a current of 2.5 A flows from the battery.