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Electromagnetic Field Theory

Electromagnetic Field Theory
Two straight parallel conductors carry equal currents in opposite direction. The force between them is

 repulsive.
 attractive.
 none of above.
 zero.

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Electromagnetic Field Theory
A metal surface with 1 meter radius and surface charge density of 20 coulombs / m2 is enclosed in a 10 m side cube. The total outward electric displacement normal to the surface of the cube is

 80π coulombs.
 40π coulombs.
 10π coulombs.
 none of these.

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Electromagnetic Field Theory
A circular loop has its radius increasing at a rate of 2 m/s. The loop placed perpendicular to a constant magnetic field of 0.5 wb/m2. When the radius of the loop is 4 m. the emf induced in the will be

 8 π V.
 0.4 π V.
 Zero.
 0.8 π V.

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Electromagnetic Field Theory
An open wire transmission line having a characteristic impedance of 600 ohms is terminated by a resistive load of 900 O. The standing wave ratio will be

1.5
2.5
4.5
3.5

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Electromagnetic Field Theory
Which of following circuit element stores energy in electro-magnetic field?

 Variable Resistor.
 Inductor.
 Capacitor.
 Condenser.

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Electromagnetic Field Theory
A plane wave in a homogeneous medium has E = 50 sin(108t + 2z) uy V/m. What is the direction of wave propagation

 z direction.
 y direction.
 – y direction.
 – z direction.

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MORE MCQ ON Electromagnetic Field Theory

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