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Electromagnetic Field Theory

Electromagnetic Field Theory
The electric flux is given D = (2y2 + z) Ix + 4xy Iy + x Iz C/m2. The volume charge density at point (-1, 0, 3) is

 - 4 C/m3.
 0 C/m3.
 - 2 C/m3.
 - 8 C/m3.

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Electromagnetic Field Theory
Tropospheric scatter is used with frequencies in the

HF
VLF
VHF
UHF

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Electromagnetic Field Theory
The lagging of flux density behind the applied magnetising force is known as

 hysteresis.
 permeance.
All of these
 flux.

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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.

 100.
 1000.
 None of these.
 500.

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

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

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Electromagnetic Field Theory
A coil of 300 turns is wound on a non magnetic core having a mean circumference of 300 mm and a cross sectional area of 300 mm2. The inductance of the coil corresponding to a magnetizing current of 6 A will be

 1.1304 μH.
 3.768 μH.
 37.68 μH.
  113.04 μH.

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MORE MCQ ON Electromagnetic Field Theory

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