$1\, m\,A =\ldots \ldots \ldots\, A$
$10^{3}$
$10^{6}$
$10^{-6}$
$10^{-3}$
In the circuit diagram shown, the two resistance wires $A$ and $B$ are of same length and same material, but $A$ is thicker than $B .$ Which ammeter $A_{1}$ or $A_{2}$ will indicate higher reading for current ? Give reason.
The unit of measurement of charge is coulomb.
$n$ equal resistors are first connected in series and then connected in parallel. The ratio of the maximum to the minimum resistance is
Why do we use copper and aluminium wire for transmission of electric current ?
What is Joule’s heating effect? How can it be demonstrated experimentally? List its four applications in daily life.