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Electromagnetic Field Theory
The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is
25 W.
50 W.
15 W.
20 W.
25 W.
50 W.
15 W.
20 W.
Answer
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Related Question
Electromagnetic Field Theory
If the resistance of a conductor does not vary in accordance with the Ohms law it is known as
non - linear conductor.
reverse conductor.
non - conductor.
bad conductor.
non - linear conductor.
reverse conductor.
non - conductor.
bad conductor.
Answer
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Electromagnetic Field Theory
In a perfect conductor the incident and reflected wave combine to produce
None of these
A standing wave which is not progressing
A stronger reflected wave
A stronger incident wave
None of these
A standing wave which is not progressing
A stronger reflected wave
A stronger incident wave
Answer
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Electromagnetic Field Theory
RF inductor are characterized by
high current rating and high resistance.
low current rating and low resistance.
high current rating and low resistance.
low current rating and high resistance.
high current rating and high resistance.
low current rating and low resistance.
high current rating and low resistance.
low current rating and high resistance.
Answer
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Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include
Amplitude timing and phase correction
Polarization shifting and code diversity
Path diversity and frequency diversity
Antenna replacement and feed correction
Amplitude timing and phase correction
Polarization shifting and code diversity
Path diversity and frequency diversity
Antenna replacement and feed correction
Answer
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Electromagnetic Field Theory
Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is
4 A/m.
2 A/m.
8 A/m.
1 A/m.
4 A/m.
2 A/m.
8 A/m.
1 A/m.
Answer
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