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Electromagnetic Field Theory

Electromagnetic Field Theory
Magnetic field intensity at centre of circular coil, of diameter 1 m and carrying a current of 2 A is

 4 A/m.
 8 A/m.
 1 A/m.
 2 A/m.

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Electromagnetic Field Theory
XEROX machine is working on

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

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Electromagnetic Field Theory
The static electric field in a conductor is

None of these
Unity
Infinity
Zero

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

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

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Electromagnetic Field Theory
A plane wave magnetic field is represented by Bx = cos(y – ct). The electric and magnetic fields will be zero in the direction

 Ey = Ez = 0, By = Bz = 0.
 Ex = Ey = 0, Bx = By = 0.
 Ex = Ey = 0, By = Bz = 0.
 None of these.

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Electromagnetic Field Theory
A square corner reflector is used in

Point to point communication
All of these
Tv broadcast
Radio astronomy

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MORE MCQ ON Electromagnetic Field Theory

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