Electromagnetic Field Theory Midway between two equal and similar charges, a third equal and similar charge is placed, then this third charge will will move out of the field of influence of two charges. be in unstable equilibrium. remain in stable equilibrium. not be equilibrium. will move out of the field of influence of two charges. be in unstable equilibrium. remain in stable equilibrium. not be equilibrium. 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 lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. lower surface of the conductor. upper surface of the conductor. midway between the conductor and ground. the ground surface. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Zero. Infinity. Unity. Depends on strength of current element. Zero. Infinity. Unity. Depends on strength of current element. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be 50 mH. 150 mH. 100 mH. 200 mH. 50 mH. 150 mH. 100 mH. 200 mH. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH. 225. 150. 250. 145. 225. 150. 250. 145. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The useful magnetic flux obtainable from any closed surface is Both A and B Constant Unity None of these Both A and B Constant Unity None of these ANSWER DOWNLOAD EXAMIANS APP
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