Question

a metallic specific resistance is 40 x 10 raise to power minus 8 ohm metre to make a coil for a wire having to multiply 10 raise to the power minus 4 metre square cross section area how much length of wire is required by the resistance of a metal wire is 4.8 Ohm​

Answer 1

mm and specific resistance 50×10-6Ω

What length of a wire of diameter 0.46 mm and specific resistance 50xx10^(-6) Omegam would be required to make a coil of  ...