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Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is
40 V.
80 V.
8 V.
60 V.
40 V.
80 V.
8 V.
60 V.
Answer
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Related Question
Electromagnetic Field Theory
Which of the following impedance inversion is obtained?
A quarter wave line
A half wave line
Balun transformer
Short-circuited stub
A quarter wave line
A half wave line
Balun transformer
Short-circuited stub
Answer
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Electromagnetic Field Theory
Coulombs law for the force between electric charges most closely resembles with
Newtons law of motion.
Law of conservation of energy.
Gauss theorem.
Newtons law of gravitation.
Newtons law of motion.
Law of conservation of energy.
Gauss theorem.
Newtons law of gravitation.
Answer
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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the
all of above.
dielectric hysteresis.
maximisation of electrostatic flux.
phenomenon of dielectric polarisation.
all of above.
dielectric hysteresis.
maximisation of electrostatic flux.
phenomenon of dielectric polarisation.
Answer
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Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying
106 volts/sec.
106 Amp.
106 Amp/sec.
106 volts.
106 volts/sec.
106 Amp.
106 Amp/sec.
106 volts.
Answer
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Electromagnetic Field Theory
The skip distance is the maximum distance upto which ionospheric reflection is possible.
False
True
False
True
Answer
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