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Electromagnetic Field Theory

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

 Bil cosθ.
 BIL.
 Bil sinθ.
 zero.

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Electromagnetic Field Theory
1 Maxwell is the same as

 10-4 weber.
 104 weber.
 10-8 weber.
 10-8 weber.

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

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Electromagnetic Field Theory
The hysteresis loop of a magnetic material has an area of 5 cm2 with the scale given as 1 cm = 2 AT and 1 cm = 50 mwb At 50 Hz; the total hysteresis loss is

 15 W.
 20 W.
 50 W.
  25 W.

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Electromagnetic Field Theory
Two coupled coils with L1 = L2 = 0.6 H have a coupling coefficient of K = 0.8. The turns ratio N1/N2 is

 0.5.
 2.
 1.
 4.

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Electromagnetic Field Theory
Which of the following is multiband HF receiving antenna?

Log-periodic
Square loop
Conical horn
Folded dipole

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MORE MCQ ON Electromagnetic Field Theory

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