“In lightning in the sky,there is a steady flow of charge”. -True or False?

$A$ current of $1\, mA$ is flowing through a copper wire. How many electrons will pass a given point in one second?

$A$ steady current is flowing in a metallic conductor of non-uniform cross-section. The physical quantity which remains constant is

The electric current in a conductor varies with time $t$ as $I = 2t + 3t^2$,where $I$ is in amperes and $t$ is in seconds. Find the total charge $Q$ (in $C$) that passes through the cross-section of the conductor from $t = 2 \ s$ to $t = 3 \ s$.

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

The current through a wire depends on time as $i = (2+3t)\, mA$. The charge crossing through a section of the wire in $1\, min$ is .............. $C$.