In which of the following Integral form of Maxwell equations, the surface is closed?(a) Amperes law(b) Gauss Law(c) Faradays Law(d) Both Amperes and Faraday lawI have been asked this question in a national level competition.Asked question is from Radiation topic in portion Radiation, Baluns & Polarization of Antennas

In which of the following Integral form of Maxwell equations, the surf

1.	In which of the following Integral form of Maxwell equations, the surface is closed?(a) Amperes law(b) Gauss Law(c) Faradays Law(d) Both Amperes and Faraday lawI have been asked this question in a national level competition.Asked question is from Radiation topic in portion Radiation, Baluns & Polarization of Antennas
Answer» CORRECT choice is (b) Gauss LAW The best I can explain: The SURFACE integral is closed for the Gauss laws of magnetic and electric fields. It is open for the amperes and FARADAYS law. Maxwell Equations: Gauss law electric FIELD: \(\oint_sD.ds =\int_v\rho_v dv \) Gauss law magnetic field : \(\oint_sB.ds =0\) Faradays law: \(\int_cE.dl =-\int_s\frac{\partial B}{\partial t}.dS\) Amperes law: \(\int_cH.dl =\int_s(\frac{\partial D}{\partial t} + J).dS\)

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