Question

A circulat coil of radius r carries a currenti.the magnetic field at its center is


b. at what distance from the center,on the axid of the coil,the magnetic field will be b/8

Answer 1

The formula for time is: T (period) = 1 / f (frequency). λ = c / f = wave speed c (m/s) / frequency f (Hz). The unit hertz (Hz) was once called cps = cycles persecond