Electromagnetic Field Theory The emf induced in a conductor rotating in bipolar field is DC. none of these. AC. DC and AC both. DC. none of these. AC. DC and AC both. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The wave in wave guide has Group velocity inversely proportional to wavelength Larger frequency than in the free space Larger wavelength than in the free space Diminishing wavelength than in the free space Group velocity inversely proportional to wavelength Larger frequency than in the free space Larger wavelength than in the free space Diminishing wavelength than in the free space ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic flux density emerging out of a closed surface is infinite. depends on magnetic movements inside the closed surface. zero. depends on magnetic movements outside the closed surface infinite. depends on magnetic movements inside the closed surface. zero. depends on magnetic movements outside the closed surface ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The magnetic field required to reduce the residual magnetism to zero is called Saturation magnetism. Retentivity. Hysteresis. Coercivity. Saturation magnetism. Retentivity. Hysteresis. Coercivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic current is composed of which of the following? None of these Only displacement current. Both conduction and displacement current. Only conduction current. None of these Only displacement current. Both conduction and displacement current. Only conduction current. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of the following will increase the antenna radiation efficiency? Use of larger section of conductor Any of the above Providing insulation on conductor Top loading of antenna Use of larger section of conductor Any of the above Providing insulation on conductor Top loading of antenna ANSWER DOWNLOAD EXAMIANS APP
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