Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Rain drops may not collect None of these Charge per unit area becomes very high for lightening to discharge Dust particles may not accumulate Rain drops may not collect None of these Charge per unit area becomes very high for lightening to discharge Dust particles may not accumulate ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is None of these Unity Constant Both A and B None of these Unity Constant Both A and B 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 Scattering Dispersion Polarisation Absorption Scattering Dispersion Polarisation Absorption ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A satellite that simply reflect back the signals from one region of the earth to the other region is known as Geostationary satellite Orbiting satellite Passive satellite Active satellite Geostationary satellite Orbiting satellite Passive satellite Active satellite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The main disadvantage of the two-hole directional coupler is Narrow bandwidth High standing wave ratio Poor directivity Low directional coupling Narrow bandwidth High standing wave ratio Poor directivity Low directional coupling ANSWER DOWNLOAD EXAMIANS APP
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