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Electromagnetic Field Theory

Electromagnetic Field Theory
XEROX machine is working on

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

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Electromagnetic Field Theory
The tubes of force within the magnetic material are known as

 magnetic flux.
 tubes of indication.
 none of them.
 lines of force.

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Electromagnetic Field Theory
The skip distance is the maximum distance upto which ionospheric reflection is possible.

True
False

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Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

 12 Ix - 8 Iy - Iz V/m.
 12 Ix - Iz V/m.
 12 Ix - 8 Iy V/m.
 12 Ix + 8 Iy + Iz V/m.

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Electromagnetic Field Theory
MUF is depend upon

11 year sun spot cycle
Received frequency by receiver
Height of ionospheric layer
Electron density of the ionospheric layer

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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

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

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MORE MCQ ON Electromagnetic Field Theory

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