List of top Physics Questions on Current electricity asked in SRMJEEE

Why is the Wheatstone bridge better than the other methods of measuring resistances?

The current which is assumed to be flowing in a circuit from positive terminal to negative, is called

Constantan wire is used for making standard resistance, because it has

Connecting a lead from the negative to the positive of a battery will produce

The number of free electrons per cm of copper wire is \(2\times10^{21}\). The average drift speed of the electrons is \(0.25\ \text{mm/s}\). The current flowing is