Question

A current of 0.5 A is drawn by a filament of an electric bulb for 20 min. The amount of electric charge that flows through the circuit is

Answer 1

Explanation:

i=q÷t

then i×t =q

0.5×20=q

10c = q

the amount of electric charge flow through carcuit is 10c

Answer 2

Answer:

A current of 0.5 A is drawn by a filament of an electric bulb for 20 min. The amount of electric charge that flows through the circuit is $600C$

Explanation:

• Consider an electrical circuit flowing current I through it. t be the time of flow and Q be the total charge. We have the expression for the total charge as,

        $Q = It$     ...(1)

• In the question, it is given that,

       $I =0.5A$

       $t = 20min = 20\times 60 = 1200s$

       we know, the charge of one electron (e) is given by,

       $e = 1.6\times 10^{-19} C$

• Substituting these values into equation (1)

       $Q = 0.5\times1200 = 600C$