Why should the area of cross section of metre bridge wire be uniform?

Write one use of metre bridge.

Does the current depend on the area of cross- section of the wire used.?

Why should the potentionmeter wire be of uniform cross-section and composition?

What is principle of a metre bridge?

Calculate the area of cross section of wire whose length is 1.0 m and resistance is 23 Omega take specific resistance of the material of wire as 1.84xx10^-6 ohm-m

When the number of turns and length of a solenoid are doubled keeping the area of cross-section same, the inductance.