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 Charge per unit area becomes very high for lightening to discharge Rain drops may not collect None of these Dust particles may not accumulate Charge per unit area becomes very high for lightening to discharge Rain drops may not collect None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Electric field strength of charge Decrease with distance. Increase square distance. Increase distance. Decrease with square distance. Decrease with distance. Increase square distance. Increase distance. Decrease with square distance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is 75. 1/75. 50. 100. 75. 1/75. 50. 100. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is Highly directional Omnidirectional None of these A figure of directional Highly directional Omnidirectional None of these A figure of directional ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Conductor is static and the field is varying then emf will be induced. This principle is called virtually induced emf. none of these static induced emf. dynamically induced emf. virtually induced emf. none of these static induced emf. dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as self inductance. series aiding inductance. mutual inductance. capacitance. self inductance. series aiding inductance. mutual inductance. capacitance. ANSWER DOWNLOAD EXAMIANS APP
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