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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 Amp.
106 volts/sec.
106 Amp/sec.
106 volts.
106 Amp.
106 volts/sec.
106 Amp/sec.
106 volts.
Answer
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Related Question
Electromagnetic Field Theory
The energy stored in the magnetic field in a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current at 10 amp, is
0.015 joule.
1.15 joule.
0.015 joule.
0.15 joule.
0.015 joule.
1.15 joule.
0.015 joule.
0.15 joule.
Answer
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Electromagnetic Field Theory
The electric field on a plane is decribed by . The field due to
a dipole.
none of above.
a monopole.
a dipole and a monopole.
a dipole.
none of above.
a monopole.
a dipole and a monopole.
Answer
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Electromagnetic Field Theory
The magnetic field required to reduce the residual magnetism to zero is called
Retentivity.
Coercivity.
Saturation magnetism.
Hysteresis.
Retentivity.
Coercivity.
Saturation magnetism.
Hysteresis.
Answer
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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
24 joules.
30 joules.
12 joules.
15 joules.
24 joules.
30 joules.
12 joules.
15 joules.
Answer
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Electromagnetic Field Theory
The effective reactance of an inductive coil
remains same irrespective of the frequency.
decreases because of stray capacitance as the frequency increases.
none of these.
increases because of stray capacitance as the frequency increases.
remains same irrespective of the frequency.
decreases because of stray capacitance as the frequency increases.
none of these.
increases because of stray capacitance as the frequency increases.
Answer
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