The current flowing through a wire depends on time as $I = 3t^2 + 2t + 5$. The charge flowing through the cross-section of the wire in the time interval from $t = 0$ to $t = 2 \ s$ is: (in $C$)

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

Which of the following statements is true about the flow of electrons in an electric circuit?

$Ampere-hour$ is a unit of

The electric current through a wire varies with time as $I = I_0 + \beta t$,where $I_0 = 20 \ A$ and $\beta = 3 \ A/s$. The amount of electric charge that crosses through a section of the wire in $20 \ s$ is: (in $C$)

When is an electric current produced? Explain.