Question

What is the difference between a potentiometer and a meter bridge?

Answer 1

The difference between a meter bridge and a potentiometer is given below:

Meter Bridge	Potentiometer
A meter bridge is based on the Wheatstone bridge For determining the unknown resistance, a meter bridge is used. The length of the wire used in the Wheatstone bridge is $6to10meters$. The meter bridge don't have an adjustable arm which is useful for increase or decrease resistance in the loop.	The potentiometer is based on the potential balance. For determining the emf of the cell, a potentiometer is used. The length of the wire used in the potentiometer is $1meter$. It has an adjustable arm which is useful for increases or decreases the resistance in the loop.