Question

An electric bulb draws a current of 0.25A for 20mins . calculate the amount of electric charge that flows through the circuit.

Answer 1

time =20 min=20×60s=1200s
it's by the formula I=Q/t
0.25A=Q/1200s
therefore Q=0.25×1200
=300C

Answer 2

HI !

Current = I = 0.25 A

Time = t = 20 min = 1200 sec

Charge = Q

I = Q/t

Q = I t
    = 0.25 x 1200
    = 300 C

Amount of electric charge that flows through the circuit = 300 C