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Which equation will be true, if the medium is considered to be air?(a) Curl(H) = 0(b) Div(H) = 0(c) Grad(H) = 0(d) Div(H) = 1The question was asked during an internship interview.This intriguing question comes from Maxwell Law 4 in portion Maxwell Equations of Electromagnetic Theory

Answer»

Right option is (b) Div(H) = 0

Easy EXPLANATION: From the Gauss law for magnetic field, the DIVERGENCE of the magnetic flux density is zero. Also B = μH. THUS divergence of H is also zero, i.e, Div(H) = 0 is true.



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