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Electromagnetic Field Theory

Electromagnetic Field Theory
If a and b are the dimensions of waveguide then

a = b
a = 2b
a = 3b
a = b/4

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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

 Zero.
 0.4 π V.
 8 π V.
 0.8 π V.

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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

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

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

 Fleming
 Faraday
 Lenz
 Maxwell

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Electromagnetic Field Theory
inductance (L2) in parallel without mutual coupling will be

 15 mH.
 20 mH.
 5 mH.
 10 mH.

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