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Electromagnetic Field Theory

Electromagnetic Field Theory
An infinite non conducting sheet of charge has σ of 10-7 c/m3. Equipotential surface for a potential of 10 volts is.

 0.88 mm.
  1.77 mm.
 1.32 mm.
 0.

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

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

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Electromagnetic Field Theory
1 Tesla =

 1 wb/ m2.
 1 wb/m.
 1 wb- m2.
 1 wb .

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Electromagnetic Field Theory
Poyniting vector has the dimensions

 Watts/metre2.
 Watt/metre.
 Watt × metre.
 Watt × metre2.

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Electromagnetic Field Theory
A waveguide operated below cut off frequency can be used as

None
Phase shifter
An attenuator
An isolator

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Electromagnetic Field Theory
Find H for centre of solenoid having finite length d = 1 unit where N = no of turns = 500, I = 2 A.

 None of these.
 500.
 1000.
 100.

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