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Electromagnetic Field Theory

Electromagnetic Field Theory
In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be

 1.0.
 2.0.
 0.5.
 Zero.

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Electromagnetic Field Theory
The main disadvantage of the two-hole directional coupler is

Low directional coupling
Poor directivity
High standing wave ratio
Narrow bandwidth

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 6664.8 N.
 1666.22 N.
 832.29 N.
 3332.47 N.

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Electromagnetic Field Theory
Fleming's right hand rule may be applied to an electric generator to find out the direction of

 induced emf.
 magnetic field.
None of these
 rotor rotation.

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

 none of above.
 repulsive.
 attractive.
 zero.

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Electromagnetic Field Theory
A loop antenna is a commonly used for

Satellite communication
Direction finding
All of these
Radar

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MORE MCQ ON Electromagnetic Field Theory

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