Question

why we are using copper in the coil of the motor rather than any metal

Answer 1

bcz it has high melting point and low resistance.hence we use only copper on coil in a motor rather than any other metal

Answer 2

Because copper have high melting point and malleable and easliy formed into bends and shapes and reshaped without fracturing. It is abundant and reasonable priced. relatively low resistance. Good corrosion resistance. Heavy. Generally the best choices for small diameter conductors.