Electromagnetic Field Theory What is the value of magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it? Infinity. Depends on strength of current element. Unity. Zero. Infinity. Depends on strength of current element. Unity. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In H-plane metal plate lens the travelling wave front is Totally retarded Accelerated Retarded Neither accelerated nor retarded Totally retarded Accelerated Retarded Neither accelerated nor retarded ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In frec space E (z,t) = 103 sin(ωt - βz) uy v/m. What is the value of H (z,t) None of above. (103/377) sin(ωt - β z)(-ux) A/m. (103/377) cos(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(-uy) A/m. None of above. (103/377) sin(ωt - β z)(-ux) A/m. (103/377) cos(ωt - β z)(-ux) A/m. (103/377) sin(ωt - β z)(-uy) A/m. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The energy stored in the magnetic field in a solenoid 10 cm long and 4 cm diameter wound with 2000 turns of wire carrying a current at 20 amp, is 12 joules. 24 joules. 15 joules. 30 joules. 12 joules. 24 joules. 15 joules. 30 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be Zero. 1.0. 2.0. 0.5. Zero. 1.0. 2.0. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity less than that of disc but in opposite direction. equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc and in the same direction. less than that of disc but in opposite direction. equal to that of disc and in the same direction. equal to that of disc and in the opposite direction. less than that of disc and in the same direction. ANSWER DOWNLOAD EXAMIANS APP
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