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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.

Tee
Balun
Directional Coupler
Slotted line

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Electromagnetic Field Theory
The property of the coil by which a counter emf is induced in it when the current through the coil changes is known as

 series aiding inductance.
 mutual inductance.
 self inductance.
 capacitance.

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Electromagnetic Field Theory
The divergence of a vector is a scalar, while the curl of a vector is another

None of these
Unit vector
Vector
Scalar

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Electromagnetic Field Theory
In above problem, if the inductance L1 and L2 in series aiding with 30 mH mutual inductance, then total inductance will be

 100 mH.
 150 mH.
 200 mH.
 50 mH.

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Electromagnetic Field Theory
When a conductor moves in the field, so that it makes an angle 8 with the lines of flux, the force F is given as : F = Bl sin2 0.

No
Yes

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Electromagnetic Field Theory
Two coils are coupled in such a way that the mutual inductance between them is 20 mH. If the inductances of the coils are 40 mH and 50 mH respectively, the coefficient of coupling is

 0.01.
 0.447.
 0.477.
 0.577.

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MORE MCQ ON Electromagnetic Field Theory

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