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Divergence of Magnetic field is ______

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Divergence of Magnetic field is ______

(a) volume charge density ρv

(b) zero

(c) infinite

(d) dependent on magnetic field vector

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The query is from Radiation in section Radiation, Baluns & Polarization of Antennas

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Correct choice is (b) zero

Explanation: The Divergence of Magnetic is always zero.It is obtained from the Maxwell equation  ∇.B=0 which is derived from the Gauss law of magnetic field.Gauss law for magnetic field states that the net flux out of any closed surface is zero. ∇.D=ρv.

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