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 Charge per unit area becomes very high for lightening to discharge Rain drops may not collect Dust particles may not accumulate None of these Charge per unit area becomes very high for lightening to discharge Rain drops may not collect Dust particles may not accumulate ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The lagging of flux density behind the applied magnetising force is known as All of these permeance. flux. hysteresis. All of these permeance. flux. hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then n. k = 0. n × k = 0. n = K. n = - k. n. k = 0. n × k = 0. n = K. n = - k. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A sphere of radius with a uniform charge density ρv C/m3 shall have electric flux density at radius “r = a” equal to aρv/4 C/m2. aρv/3 C/m2. aρv C/m2. ρv/3 C/m2. aρv/4 C/m2. aρv/3 C/m2. aρv C/m2. ρv/3 C/m2. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The potential that appears at a point in space due to the current which caused it is called potential Oscillating Lagging the current Accelerating Retardation Oscillating Lagging the current Accelerating Retardation ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A Yagi antenna has a driven antenna With a reflector and one or more directors With a reflector With one or more directors Only With a reflector and one or more directors With a reflector With one or more directors Only ANSWER DOWNLOAD EXAMIANS APP
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