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Electromagnetic Field Theory

Electromagnetic Field Theory
The power gain of a half-wave dipole with respect to an isotropic radiator is

2.15 db
4.15 db
6 db
3 db

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Electromagnetic Field Theory
The right hand rule for determining the direction of the induced EMF was introduced by

 Lenz
 Fleming
 Maxwell
 Faraday

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Electromagnetic Field Theory
RF inductor are characterized by

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

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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.
 150 V.
 50 V.
 37.5 V.

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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.
 100.
 500.
 1000.

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Electromagnetic Field Theory
The magnitude of force acting on a current carrying conductor placed in a magnetic field is independent of

 current flowing through the conductor.
 flux density.
 cross-sectional area of conductor.
 length of conductor.

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MORE MCQ ON Electromagnetic Field Theory

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