A uniform wire of length l carrying current radiates energy at a rate P to environment while its
Channel: Doubtnut
Date: 2020-01-28

A uniform wire of length l carrying current radiates energy at a rate P to environment while its temperature remains the same. Magnitude of magnetic flux density on the surface of wire is B and its diameter is d. If electric field strenght in wire is given by `E=(nmu_(0)P)/(Bpild)`, then find n.