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Electromagnetic Field Theory

Electromagnetic Field Theory
Which of the following impedance inversion is obtained?

Short-circuited stub
A quarter wave line
A half wave line
Balun transformer

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

 5.
 20.
 50.
 10.

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Electromagnetic Field Theory
Biot-Savarts law states the relation between magnetic intensity and

 volume current only.
 surface current only.
 filament current only.
 (A), (B), and (D) are all correct.

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Electromagnetic Field Theory
In an inductor current cannot change abruptly. Comment on the statement.

 True.
 True partially.
 Cannot comment.
 False.

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Electromagnetic Field Theory
The electric field on a plane is decribed by . The field due to

 a dipole.
 a dipole and a monopole.
 none of above.
 a monopole.

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Electromagnetic Field Theory
RF inductor are characterized by

 low current rating and high resistance.
 high current rating and low resistance.
 high current rating and high resistance.
 low current rating and low resistance.

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