The electric current in a wire varies with time as $i = (2 + 3t) \text{ A}$. Calculate the charge that passes through the cross-section of the wire in $10 \text{ s}$.

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

In a closed circuit,the current at time $t$ is given by $I = 4 - 0.08t$. The number of electrons passing through the cross-section of the conductor in $50 \ s$ will be:

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

If a current of $1.6 \, mA$ is flowing in a conducting wire,then the number of electrons flowing per second 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: