Question

A current of 1.5 A is drawn by a filament of an electric bulb for 20 min.find the amount of electric charge that flows through the circuit

Answer 1

Answer:current=1.5 A,time=20 mins

so,

    i=q/t

   therefore q=it

                    q=1.5.20

                      =30 C

Explanation:

Answer 2

The electric charge that flows through the circuit is 1800 C.

Explanation:

Given that,

Current, I = 1.5 A

Time, t = 20 min = 1200 s

We need to find the electric charge that flows through the circuit. The electric charge per unit time is called electric current. It is given by :

$I=\dfrac{q}{t}\\\\q=I\times t\\\\q=1.5\ A\times 1200\ s\\\\q=1800\ C$

So, the electric charge that flows through the circuit is 1800 C. Hence, this is the required solution.

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