$A$ steady current $i$ is flowing through a conductor of uniform cross-section. Any segment of the conductor has

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

$A$ flow of $10^{7}$ electrons per second in a conducting wire constitutes a current of

The electric current flowing through a given conductor varies with time as shown in the graph below. The number of free electrons which flow through a given cross-section of the conductor in the time interval $0 \leq t \leq 20 \ s$ is

$A$ metallic conductor of non-uniform cross-sectional area is subjected to a constant potential difference. Which of the following quantities remains constant along the conductor?

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