Electromagnetic Field Theory A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is 0. – uy. 2 ux. – 2 ux. 0. – uy. 2 ux. – 2 ux. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Radiation intensity in a given direction is the Energy radiated per square metre Power radiated per square metre Power radiated per unit solid angle in that direction None of these Energy radiated per square metre Power radiated per square metre Power radiated per unit solid angle in that direction None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation y direction. z direction. – y direction. – z direction. y direction. z direction. – y direction. – z direction. ANSWER DOWNLOAD EXAMIANS APP
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 None of these Rain drops may not collect Charge per unit area becomes very high for lightening to discharge Dust particles may not accumulate None of these Rain drops may not collect Charge per unit area becomes very high for lightening to discharge ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is Both A and B Unity Constant None of these Both A and B Unity Constant None of these ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ . Transmission Refraction Reflection None of these Transmission Refraction Reflection None of these ANSWER DOWNLOAD EXAMIANS APP
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