Electromagnetic Field Theory Gradient of scalar field is expressed as Circulation of a vector field per unit area as the area tends to zero. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. Maximum rate of increase of scalar function at a point. Circulation of a vector field per unit area as the area tends to zero. Outward flux of a vector field per unit volume as the volume about the point tends to zero. Gradient of divergence of a vector field minus the curl of the vector field. Maximum rate of increase of scalar function at a point. 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 Dispersion Polarisation Scattering Absorption Dispersion Polarisation Scattering Absorption ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Tropospheric scatter is used with frequencies in the UHF VHF VLF HF UHF VHF VLF HF ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which antenna is a wideband antenna? Marconi antenna Hertz antenna None of these Folded dipole Marconi antenna Hertz antenna None of these Folded dipole ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The critical frequency of ‘F’ layer is greater than 30 MHz. False True False True ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The shape of B-H curve for air gap is ellipse. parabola. straight line. hyperbola. ellipse. parabola. straight line. hyperbola. ANSWER DOWNLOAD EXAMIANS APP
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