Calculate the energy when the magnetic intensity and magnetic flux density are 15 and 65 respectively.(a) 755(b) 487.5(c) 922(d) 645I got this question during an interview.My question comes from Magnostatic Energy topic in section Magnetostics of Electromagnetic Theory

Calculate the energy when the magnetic intensity and magnetic flux den

1.	Calculate the energy when the magnetic intensity and magnetic flux density are 15 and 65 respectively.(a) 755(b) 487.5(c) 922(d) 645I got this question during an interview.My question comes from Magnostatic Energy topic in section Magnetostics of Electromagnetic Theory
Answer» CORRECT answer is (b) 487.5 Easy explanation: The magnetic energy can also be WRITTEN as E = 0.5 μH^2 = 0.5 BH, since B = μH. On substituting B = 65 and H = 15 we get E = 0.5 X 65 x 15 = 487.5 UNITS.

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