Electromagnetic Field Theory The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is 3. 4. 2. 8. 3. 4. 2. 8. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The two windings of a transformer have an inductor of 2 H each. If mutual inductor between them is also 2 H, then none of these. transformer is an ideal transformer. turns ratio of the transformer is also two. it is a perfect transformer. none of these. transformer is an ideal transformer. turns ratio of the transformer is also two. it is a perfect transformer. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When the phase velocity of an EM wave depends on frequency in any medium the phenomenon is called Polarisation Dispersion Scattering Absorption Polarisation Dispersion Scattering Absorption ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory For DC voltage an inductor is virtually a depends on polarity. open circuit. short circuit. depends on magnitude of voltage. depends on polarity. open circuit. short circuit. depends on magnitude of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Larger wavelength than in the free space Larger frequency than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger wavelength than in the free space Larger frequency than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength 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. Infinity. Depends on strength of current element. Zero. Unity. Infinity. Depends on strength of current element. Zero. ANSWER DOWNLOAD EXAMIANS APP
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