$A$ $60\,W$ bulb carries a current of $0.5\,A$. The total charge passing through it in $1$ hour is ............ $C$.

$A$ current of $20\,\mu A$ flows for $30$ seconds in a wire. The total charge transferred will be:

$Ampere-hour$ is a unit of

The electric current in a wire varies with time as $i = (2 + 3t) \text{ A}$. Calculate the charge that passes through the cross-section of the wire in $10 \text{ s}$.

Due to what is current formed in an electrolyte?

Explain the current formed in solid conductors in the presence of an external electric field.