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Electromagnetic Field Theory

Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Amperes law.
 Faradays law.
 Lenzs law.
 Kirchhoffs law.

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

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

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Electromagnetic Field Theory
A conductor of length 100 cm moves at right angles to a magnetic field of flux density 1.5 Wb/m2 with a velocity of 50 m/s. The induced emf in the conductor will be

 75 V.
 50 V.
 37.5 V.
 150 V.

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Electromagnetic Field Theory
If n is the polarization vector and k is the direction of propagation plane electromagnetic wave, then

 n × k = 0.
 n. k = 0.
 n = K.
 n = - k.

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Electromagnetic Field Theory
A loop antenna is a commonly used for

Radar
Satellite communication
All of these
Direction finding

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Electromagnetic Field Theory
A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is

 5 N.
 2 N.
 3.75 N.
 2.5 N.

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MORE MCQ ON Electromagnetic Field Theory

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