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 15 joules. 12 joules. 30 joules. 24 joules. 15 joules. 12 joules. 30 joules. 24 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The radiation pattern of a parabola antenna is Highly directional A figure of directional None of these Omnidirectional Highly directional A figure of directional None of these Omnidirectional ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory A point charge in space is attracted towards a dielectric material because of the maximisation of electrostatic flux. all of above. phenomenon of dielectric polarisation. dielectric hysteresis. maximisation of electrostatic flux. all of above. phenomenon of dielectric polarisation. dielectric hysteresis. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to A quardra pole. A dipole. A monopole. Both of A and B. A quardra pole. A dipole. A monopole. Both of A and B. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The attenuation in waveguide above to cut off frequency Very high Zero Very low Infinite Very high Zero Very low Infinite ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In above problem the induced emf will be reduced to half if the conductor moves an angle of 30° to the direction of field. 60° to the direction of field. 75° to the direction of field. 45° to the direction of field. 30° to the direction of field. 60° to the direction of field. 75° to the direction of field. 45° to the direction of field. ANSWER DOWNLOAD EXAMIANS APP
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