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Electromagnetic Field Theory

Electromagnetic Field Theory
A square corner reflector is used in

Point to point communication
Radio astronomy
Tv broadcast
All of these

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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
 dynamically induced emf.
 both A and B.
 static induced emf.

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Electromagnetic Field Theory
Between a hollow and solid metal sphere, charge reside

 on outer surface in both.
 None of above.
 on outer surface in hollow and throughout in solid
 on outer surface in hollow and throughout in solid.

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Electromagnetic Field Theory
Which of the following is zero in relation to electromagnetic fields?

 Div grad V.
 Div curl A.
 Curl curl A.
 Grad div A.

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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.
 3.2 H.
 3.2 µH.
 32 mH.

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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

 40 nj.
 20 nj.
 100 nj.
 60 nj.

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MORE MCQ ON Electromagnetic Field Theory

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