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Electromagnetic Field Theory

Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = b
a = b/4
a = 3b
a = 2b

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Electromagnetic Field Theory
For a linear electromagnetic circuit, which of the following statement is true?

 Field energy is greater than the co-energy.
 Co-energy is zero.
 Field energy is equal to the co-energy.
 Field energy is lesser than the co-energy.

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Electromagnetic Field Theory
When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.

No
Yes

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Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.19 m.
 1.59 m.
 1.29 m.
 1.39 m.

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Electromagnetic Field Theory
An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to

 Both of A and B.
 A monopole.
 A dipole.
 A quardra pole.

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Electromagnetic Field Theory
The field at any point on the axis of a current carrying coil will be

 perpendicular to the axis.
 at angle of 45° with the axis.
 parallel to axis.
 zero.

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MORE MCQ ON Electromagnetic Field Theory

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