Question

Can we use copper wire instead of nichrome in the meter bridge?

Answer 1

No, we can not use copper wire instead of nichrome in the meter bridge.

1. Copper can not be used as a meter bridge wire because it has low resistance and a high-temperature coefficient of resistivity.
2. In a meter bridge, wires of nichrome, manganin and constantan are used because it has high resistance and low-temperature coefficient of resistance.