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Electromagnetic Field Theory

Electromagnetic Field Theory
For DC voltage an inductor is virtually a

 open circuit.
 short circuit.
 depends on polarity.
 depends on magnitude of voltage.

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Electromagnetic Field Theory
Mutual inductance between two magnetically coupled coils depends on

 permeability of core.
 cross sectional area of their common core.
 all of above.
 the number of their turns.

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Electromagnetic Field Theory
A plane wave magnetic field is represented by Bx = cos(y – ct). The electric and magnetic fields will be zero in the direction

 None of these.
 Ey = Ez = 0, By = Bz = 0.
 Ex = Ey = 0, Bx = By = 0.
 Ex = Ey = 0, By = Bz = 0.

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

 Faraday
 Maxwell
 Lenz
 Fleming

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Electromagnetic Field Theory
A negative point charge q = - 40 nC is moving with velocity of 6 × 106 m/s in a direction specited by unit vector uy + 0.6 uz. Find the magnitude of force vector on the moving particle by the field B = 2 ux + 3 uy + 5 uz mT and E = 2 ux - 3 uy + 5 uz KV/m

 244 μN.
  1144 μN.
 144 μN.
 1440 μN.

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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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MORE MCQ ON Electromagnetic Field Theory

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