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Electromagnetic Field Theory

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

 Lenz
 Fleming
 Maxwell
 Faraday

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Electromagnetic Field Theory
The principle of dynamically induced emf is utilized in a

 generator.
 transformer.
 thermocouple.
 choke.

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Electromagnetic Field Theory
Two point charges (Q and – Q) are situated at the vertex of the square. If potential at another vertex is 2 V, so potential at opposite vertex (diagonally) is

  2 V.
 1 V.
 √ 2 V.
 Zero.

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Electromagnetic Field Theory
Find the strength of the magnetic field when a 2m long conductor is moving with a velocity 4m/s inducing an emf of 20V.

 10T.
 5T.
 2.5T.
 0.5T.

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Electromagnetic Field Theory
Two infinite parallel metal plates are charged with equal surface charge density of the same polarity. The electric field in the gap between the plates is

 same as that produced by one plate.
 zero.
 double the field produced by one plate.
 dependent on coordinates of field points.

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Electromagnetic Field Theory
In an impedance smith chart, a clockwise movement along a constant resistance circle gives rise to

An increase in the value of reactance
Decrease in the value of reactance
No change in the reactance value
No change in the impedance value

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MORE MCQ ON Electromagnetic Field Theory

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