Question

# A current of 0.25A is flowing through a filament of an electric bulb for 20min. Find the amount of electric charge that flows through the circuit.

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Solution

## A current (i) is flowing through the filament of an electric bulb for time t=20minIf a net charge Q, flows across any cross-section of a conductor in time t, then the current i, through the cross-section is, i=QtQ=i×t=0.25×20×60=300C

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