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Electromagnetic Field Theory

Electromagnetic Field Theory
If the static magnetic flux density is B, then

 Curl of B = J.
 Divergence of B = J.
 Curl of B = 0.
  Divergence of B = 0.

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Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

 BI2L.
 BL2I.
 zero.
 BIL.

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Electromagnetic Field Theory
XEROX machine is working on

 peltier effect.
 electrostatic effect.
 heating effect of current.
 magnetic effect.

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Electromagnetic Field Theory
What is the value of total electric flux coming out of a closed surface?

 Equal to volume change density.
 Equal to total charge enclosed by the surface.
 Equal to the surface charge density.
 Zero.

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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 100.
 75.
 50.
 1/75.

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Electromagnetic Field Theory
The emf induced in a conductor rotating in bipolar field is

 none of these.
 DC.
 DC and AC both.
 AC.

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MORE MCQ ON Electromagnetic Field Theory

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