Given a current-carrying wire of non-uniform cross-section,which of the following is constant throughout the length of the wire?

Write the direction of the electric current between the electrodes of an electric cell.

$5 \, A$ of current is passed through a metallic conductor. The charge flowing in one minute in coulombs will be:

The current in a wire varies with time according to the relation $I = 4 + 2t$. The quantity of charge which has passed through a cross-section of the wire during the time $t = 2 \, s$ to $t = 6 \, s$ will be .............. $C$.

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

In a conducting region, $10^{19}$ electrons and $10^{19}$ protons move to the left, while $10^{19}$ $\alpha$-particles move to the right per second. The resulting electric current is $(e = 1.6 \times 10^{-19} \text{ C})$