In a conductor,$4$ coulombs of charge flows for $2$ seconds. The value of electric current will be:

The current flowing through a wire decreases linearly from $10 \text{ A}$ to zero in $4 \text{ s}$. Find the total charge flowing through the wire in the given time interval. (in $text{ C}$)

In a region,$10^{19}$ $\alpha$-particles and $10^{19}$ protons per second move to the left,while $10^{19}$ electrons move to the right per second. The current is

The current passing through a copper voltameter is $3.2 \ A$. The number of copper ions $(Cu^{2+})$ deposited at the cathode per minute is:

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 ............ $A$.

In a hydrogen discharge tube,it is observed that through a given cross-section,$3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right per second. What is the electric current in the discharge tube and what is its direction?