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Electromagnetic Field Theory
Which of the following represents ohms law
V = RI
I = GV
All of these
J = σE
V = RI
I = GV
All of these
J = σE
Answer
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Related Question
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/sec.
106 volts.
106 Amp.
106 volts/sec.
106 Amp/sec.
106 volts.
106 Amp.
106 volts/sec.
Answer
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Electromagnetic Field Theory
A point charge in space is attracted towards a dielectric material because of the
phenomenon of dielectric polarisation.
all of above.
dielectric hysteresis.
maximisation of electrostatic flux.
phenomenon of dielectric polarisation.
all of above.
dielectric hysteresis.
maximisation of electrostatic flux.
Answer
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Electromagnetic Field Theory
The magnetic vector potential due to a single conductor carrying current is
infinite.
finite.
none of tha above.
zero.
infinite.
finite.
none of tha above.
zero.
Answer
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Electromagnetic Field Theory
The frequency range for satellite communication is
300 to 3000 kHz
30000 to 300000 MHz
3 to 30 kHz
3000 to 30000 MHz
300 to 3000 kHz
30000 to 300000 MHz
3 to 30 kHz
3000 to 30000 MHz
Answer
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Electromagnetic Field Theory
A conductor of length 1 metre moves at right angles to magnetic field of flux density 1 Wb/m2 with a velocity of 25 m/s. The induced emf in the conductor will be
50 V.
75 V.
25 V.
100 V.
50 V.
75 V.
25 V.
100 V.
Answer
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