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Electromagnetic Field Theory

Electromagnetic Field Theory
The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is

 3.2 mH.
 32 mH.
 3.2 H.
 3.2 µH.

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Electromagnetic Field Theory
The force experienced by a current carrying conductor lying parallel to a magnetic field is

 Bil cosθ.
 BIL.
 zero.
 Bil sinθ.

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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

 permeability of core.
 cross sectional area of their common core.
 all of above.
 the number of their turns.

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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

 third law
 first law
 second law
 fourth law

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Electromagnetic Field Theory
The work done by a force F = 4un - 3uy + 2uz N in giving a 1nC charge a displacement of (10 ux + 2uy - 7uz) m is

 60 nj.
 100 nj.
 20 nj.
 40 nj.

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Electromagnetic Field Theory
Conductor is varying and field is fixed then emf will be induced. This principle is called

None of these
 both A and B.
 dynamically induced emf.
 static induced emf.

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MORE MCQ ON Electromagnetic Field Theory

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