Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? None of these Rain drops may not collect Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge None of these Rain drops may not collect Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m? 2 mA. 1mA. 1.5 mA. 2.5 mA. 2 mA. 1mA. 1.5 mA. 2.5 mA. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is 4 A/m. 2 A/m. 8 A/m. 1 A/m. 4 A/m. 2 A/m. 8 A/m. 1 A/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The frequency range for satellite communication is 3 to 30 kHz 30000 to 300000 MHz 300 to 3000 kHz 3000 to 30000 MHz 3 to 30 kHz 30000 to 300000 MHz 300 to 3000 kHz 3000 to 30000 MHz 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 transformer is an ideal transformer. none of these. it is a perfect transformer. turns ratio of the transformer is also two. transformer is an ideal transformer. none of these. it is a perfect transformer. turns ratio of the transformer is also two. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Tropospheric scatter is used with frequencies in the HF UHF VHF VLF HF UHF VHF VLF ANSWER DOWNLOAD EXAMIANS APP
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