Question

The filament of an electric lamp draws a current of 0.4 a which lights for 3hrs . Calculate the amount of charge that flows through the circuit

Answer 1

$I=0.4\text{ A}\\T=3 \text{ hours}$

$\text{Which is equal to 10800 seconds}$

$I=q/t\\Q=I\times t\\Q=0.4\times10800\\\bold{Q=4320 \text{{Coulomb}}}$