What is the direction of conventional current?

An electron revolves $6 \times 10^{15}$ times per second in a circular loop. The current in the loop is:

$A$ current $I = I_{0} e^{-\lambda t}$ is flowing in a circuit. The total charge that flows through the circuit over the entire pulse period (from $t = 0$ to $t = \infty$) is:

If a current of $8 \ A$ flows through a heater wire,what is the number of electrons passing through it in one minute?

$A$ cable of resistance $10\,\Omega$ carries electric power from a generator producing $250\,kW$ at $10000\,V$. The current in the cable is ............. $A$.

Electric current has both magnitude and direction. It is a