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Electromagnetic Field Theory

Electromagnetic Field Theory
Self inductance of magnetic coil is proportional to

 1 / N2.
 1 / N.
 N.
 N2.

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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

 150 V.
 75 V.
 37.5 V.
 50 V.

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Electromagnetic Field Theory
A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as

 milli - coulomb.
 pico - coulomb.
 coulomb.
 micro - coulomb.

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Electromagnetic Field Theory
Which of the following is multiband HF receiving antenna?

Log-periodic
Conical horn
Square loop
Folded dipole

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Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

 12 Ix - Iz V/m.
 12 Ix - 8 Iy V/m.
 12 Ix + 8 Iy + Iz V/m.
 12 Ix - 8 Iy - Iz V/m.

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Electromagnetic Field Theory
In a lossless medium the intrinsic impedance η = 60π and μr = 1. The relative dielectric constant εr shall be

 1.
 4.
 8.
 2.

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MORE MCQ ON Electromagnetic Field Theory

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