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Electromagnetic Field Theory

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

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

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Electromagnetic Field Theory
Plane z = 10 m carries charge 20 C/m2. The electric field intensity at the origin is

 – 10 uz v/m.
 – 72 πuz v/m.
  – 360 πuz v/m.
 – 18 πuz v/m.

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Electromagnetic Field Theory
The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes

 - 100 μ v/m.
 100 μ v/m.
 None of above.
 0.

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Electromagnetic Field Theory
In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is

 Infinity.
 4.32.
 Zero.
  2.16.

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Electromagnetic Field Theory
Two coils have inductances L1 = 1200 mH and L2 = 800 mH. They are connected in such a way that flux in the two coils aid each other and inductance is measured to be 2500 mH, then Mutual inductance between the coils is ___________ mH.

 225.
 250.
 145.
 150.

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Electromagnetic Field Theory
Unit of electric flux density is

 coulomb / meter2.
 coulomb.
 weber / meter2.
 farad / meter.

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MORE MCQ ON Electromagnetic Field Theory

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