Question

In a electric circuit for driving a current of 5A for 5min a work of 1500J has to be done. find emf applied on the circuit ​

Answer 1

66.67 V

As,

I=4mA=0.004A

t=5*60 s

Work done=VIt

80=V*0.004*5*60

V=2000/30

Potential difference=66.67V