Electromagnetic Field Theory When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called Dispersion Absorption Polarisation Scattering Dispersion Absorption Polarisation Scattering ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s third law first law fourth law second law third law first law fourth law second law ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following statement is correct for divergence of electric and magnetic flux densities? It is zero for the magnetic flux density. Both are zero. These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. It is zero for the magnetic flux density. Both are zero. These are zero for static densities but non zero for time varying densities. It is zero for the electric flux density. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Unity. Zero. Depends on strength of current element. Infinity. Unity. Zero. Depends on strength of current element. Infinity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Use of larger section of conductor Top loading of antenna Any of the above Providing insulation on conductor Use of larger section of conductor Top loading of antenna Any of the above Providing insulation on conductor ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Unit of electric flux density is coulomb / meter2. farad / meter. coulomb. weber / meter2. coulomb / meter2. farad / meter. coulomb. weber / meter2. ANSWER DOWNLOAD EXAMIANS APP
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