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Electromagnetic Field Theory

Electromagnetic Field Theory
It is best to use for coupling a coaxial line to a parallel wire transmission line.

Directional Coupler
Balun
Tee
Slotted line

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Electromagnetic Field Theory
The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is

 1.15 J.
 0.15 J.
 0.015 J.
 0.5 J.

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Electromagnetic Field Theory
Coulombs law for the force between electric charges most closely resembles with

 Newtons law of motion.
 Newtons law of gravitation.
 Gauss theorem.
 Law of conservation of energy.

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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

 0.5.
 1.
 2.
 4.

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Electromagnetic Field Theory
Electric field intensity (E) at ant point in an electric field is equal to

 (potential gradient)1/3.
 (potential gradient)1/2.
 potential gradient.
 (potential gradient)2.

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Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 75.
 50.
 100.
 1/75.

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MORE MCQ ON Electromagnetic Field Theory

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