Electromagnetic Field Theory In order to minimize loss due to hysteresis the magnetic material should have large coercivity. high hysteresis coefficient. small B-H loop area. high resistivity. large coercivity. high hysteresis coefficient. small B-H loop area. high resistivity. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory The lagging of flux density behind the applied magnetising force is known as All of these flux. hysteresis. permeance. All of these flux. hysteresis. permeance. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In an iron core coil the iron core is removed so that the coil becomes an air core coil. The inductance of the coil will increase. initially increase and then decrease. decrease. remain the same. increase. initially increase and then decrease. decrease. remain the same. 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 30 joules. 12 joules. 15 joules. 24 joules. 30 joules. 12 joules. 15 joules. 24 joules. ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory In case of surface waves the field strength at a point is directly proportional to Distance of the point from the antenna Wave frequency Current of the antenna Antenna height Distance of the point from the antenna Wave frequency Current of the antenna Antenna height ANSWER DOWNLOAD EXAMIANS APP
Electromagnetic Field Theory Which of following is the unit of inductance? Webers / m. Ohm. Milli- henry. Ampere turns. Webers / m. Ohm. Milli- henry. Ampere turns. ANSWER DOWNLOAD EXAMIANS APP
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