Question

The permanent magnet in shape of thin cylinder of lenght 10cm has M = 10^6 A/m . Calculate magnetisation current ?

Answer 1

Heya......!!!

According to the problem , M ( intensity of magnetisation ) = 10^6 A / m
l ( length ) = 10 cm = 10 × 10^-2 = 0.1 m
and i(m) = magnetisation current

By appying simple formulae => M = i(m)/ l
i(m) = M × l

magnetisation current =>10^6 × 0.1 = 10^5 A .


Hope it helps u ^_^