the filament of an electric lamp draws a current of 0.4 ampere which lights for 3 hours calculate the amount of charge that flows through the circuit
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hi
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Current,I=0.4A
time,t=3h=3×60×60s=10800s
charge,Q=?
we know that
I=Q÷t
Q=it
Q=0.4a×10800s=4320c
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