Question

How can i calculate resistance of a wire?

Answer 1

Using a set up known as meter bridge we can easily find the Resistance of a wire.

Explanation:

The meter bridge works on the principle of wheat-stone bridge.

For the meter bridge shown above the relation from wheat stone bride principle comes out to be :-

`R/X = l/(100-l)`

Thus, the unknown resistance `X` is calculated easily.

The general wheat-stone bridge is shown below :-