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Electromagnetic Field Theory

Electromagnetic Field Theory
Two straight parallel conductors carry equal currents in opposite direction. The force between them is

 none of above.
 attractive.
 zero.
 repulsive.

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Electromagnetic Field Theory
Which of the following represents ohms law

 V = RI
 J = σE
 I = GV
All of these

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Electromagnetic Field Theory
Whenever the magnetic flux changes with respect to an electric conductor or a coil, an EMF is induced in the conductor is Faraday’s

 fourth law
 third law
 first law
 second law

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Electromagnetic Field Theory
The magnetic intensity in A/m at the centre of circular coil of diameter 1m and carrying a current of 2A is

 8.
 2.
 4.
 3.

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Electromagnetic Field Theory
A magnetic field B = 5 × 10-2 uz T exerts a force on 0.02 m conductor along the x-axis. The conductor carried a current of 5 mA in the – ux direction. What force must be applied to the conductor to hold it in position

 5 × 10-5 uz N.
 5 × 10-5 uy N.
 5 × 10-5 ux N.
  - 5 × 10-5 uy N.

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

 50.
 20.
 5.
 10.

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MORE MCQ ON Electromagnetic Field Theory

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