Electromagnetic Field Theory Due to which of the following reasons a lightning conductor on top of a building is made into a pointed spike? Dust particles may not accumulate Rain drops may not collect Charge per unit area becomes very high for lightening to discharge None of these Dust particles may not accumulate Rain drops may not collect Charge per unit area becomes very high for lightening to discharge None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory XEROX machine is working on magnetic effect. electrostatic effect. heating effect of current. peltier effect. magnetic effect. electrostatic effect. heating effect of current. peltier effect. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m 1440 μN. 244 μN. 144 μN. 1144 μN. 1440 μN. 244 μN. 144 μN. 1144 μN. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The effective reactance of an inductive coil increases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. decreases because of stray capacitance as the frequency increases. none of these. increases because of stray capacitance as the frequency increases. remains same irrespective of the frequency. decreases because of stray capacitance as the frequency increases. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at the ground surface. midway between the conductor and ground. upper surface of the conductor. lower surface of the conductor. the ground surface. midway between the conductor and ground. upper surface of the conductor. lower surface of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to Wave frequency Distance of the point from the antenna Antenna height Current of the antenna Wave frequency Distance of the point from the antenna Antenna height Current of the antenna ANSWER DOWNLOAD EXAMIANS APP
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