The current element of the magnetic vector potential for a surface current will be(a) J dS(b) I dL(c) K dS(d) J dVI got this question in an international level competition.My enquiry is from Magnetic Vector Potential in portion Magnetostics of Electromagnetic Theory

The current element of the magnetic vector potential for a surface cur

1.	The current element of the magnetic vector potential for a surface current will be(a) J dS(b) I dL(c) K dS(d) J dVI got this question in an international level competition.My enquiry is from Magnetic Vector Potential in portion Magnetostics of Electromagnetic Theory
Answer» Correct ANSWER is (c) K dS The best I can explain: The magnetic vector POTENTIAL for the surface INTEGRAL is GIVEN by A = ∫ μKdS/4πR. It is clear that the CURRENT element is K dS.

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The current element of the magnetic vector potential for a surface current will be(a) J dS(b) I dL(c) K dS(d) J dVI got this question in an international level competition.My enquiry is from Magnetic Vector Potential in portion Magnetostics of Electromagnetic Theory

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