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Electromagnetic Field Theory

Electromagnetic Field Theory
Which of the following is zero in relation to electromagnetic fields?

 Grad div A.
 Div curl A.
 Curl curl A.
 Div grad V.

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Accelerated
Retarded
Neither accelerated nor retarded
Totally retarded

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Electromagnetic Field Theory
If in a 1 mF capacitor, an instantaneous displacement current of 1 A is to be established in the spaces between its plates then it is possible by applying

 106 Amp.
 106 volts.
 106 Amp/sec.
 106 volts/sec.

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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

 2.
 4.
 0.5.
 1.

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Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.

 2.5T.
 0.5T.
 5T.
 10T.

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Electromagnetic Field Theory
A loop antenna is a commonly used for

Radar
Direction finding
All of these
Satellite communication

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MORE MCQ ON Electromagnetic Field Theory

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