Question

Which material is used for the meter bridge wire and why?

Answer 1

The material of wire used in meter bridge is made of manganin or eureka due to there high specific resistance or resistivity. Thick copper strips are used in meter bridge because copper is a good conductor of electricity.

Answer 2

Hey !!

This is done to minimize the percentage error in the value of the unknown resistance.

ALTERNATIVELY,

This is done to have a better ''balancing out'' of the effects of any irregularity or non-uniformity in the meter bridge wire.

This can help in increasing the sensitivity of the meter bridge circuit.

GOOD LUCK !!