1.

The magnetic field (B) generated inside an electromagnet is equal to? (Where H is magnetic intensity, M is magnetisation of the material of the core and μo is permeability of vacuum)

A. μo(H + M)
B. μo(H + M)2
C. (H + M)/μo
D. (H + M)2/μo
Answer» B. μo(H + M)2


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