A potentiometer wire has length of 2m and resistance 10^{Ω}. It is connected in series with resistance 990Ω and a cell of e.m.f. 2V. Calculate the potential gradient along the wire.

Advertisement Remove all ads

#### Solution

Given: L = 2 m, R = 10 Ω, R_{E} = 990 Ω

E = 2 V

To find: Potential gradient of wire (K)

Formula: `K = V/L`

∴ K = 10^{-2} V/m = 0.01 V/m

The potential gradient of wire is 0.01 V/m.

Concept: Meter Bridge

Is there an error in this question or solution?

Advertisement Remove all ads

#### APPEARS IN

Advertisement Remove all ads

Advertisement Remove all ads