What is the direction of conventional current?

Explain how electric current is formed. Give a suitable example.

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 $(e = 1.6 \times 10^{-19} \text{ C})$

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

How is current formed in conductors?

The current $I$ versus time $t$ graph for a conductor is shown in the figure. The average current through the conductor in the interval $0$ to $15 \, s$ is ............ $A$.