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The Maxwell equation ∇×E=\(\frac{-\partial B}{\partial t}\) is derived from which law?

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The Maxwell equation ∇×E=\(\frac{-\partial B}{\partial t}\) is derived from which law?

(a) Amperes law

(b) Faradays Law

(c) Lens law

(d) Gauss law

I had been asked this question during an interview for a job.

The doubt is from Radiation topic in portion Radiation, Baluns & Polarization of Antennas

1 Answer

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Correct choice is (b) Faradays Law

The explanation: Faradays law states that emf generated around a loop of wire in magnetic field is proportional to the rate of change of time-varying magnetic field through the loop.

Amperes law gives ∇×H=J

Lens law gives only the reason for the negative sign in the Faradays law of induction.

Gauss’s law states that the net flux of an electricfield in a closed surface is directly proportional to the enclosed electric charge.

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