What is the direction of conventional current?

What is the magnitude of the electric charge on an electron?

When do we say that the resistors are connected in series?

Electric power of a circuit is the rate at which work is done in maintaining the electric current in the circuit.

If a current of $0.5\;A$ is passed through an electric bulb for $1\;hour$, how much electric charge will pass through the bulb (in $C$)?

An electric oven hot plate is connected to a $200 \, V$ line. It has two resistance coils $A$ and $B$,each of $30 \, \Omega$,which may be used separately,in series,or in parallel. Find the value of the current required in each of the three cases.