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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

 Zero.
 0.5.
 1.0.
 2.0.

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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

 0.8 π V.
 8 π V.
 Zero.
 0.4 π V.

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Electromagnetic Field Theory
An electric field on a place described by its potential V = 20 (r -1 + r-2) where r is the distance from the source. The field is due to

 A monopole.
 Both of A and B.
 A dipole.
 A quardra pole.

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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.
 Ex = Ey = 0, Bx = By = 0.
 Ey = Ez = 0, By = Bz = 0.
 Ex = Ey = 0, By = Bz = 0.

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Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

 12 Ix + 8 Iy + Iz V/m.
 12 Ix - 8 Iy V/m.
 12 Ix - Iz V/m.
 12 Ix - 8 Iy - Iz V/m.

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Electromagnetic Field Theory
A Yagi antenna has a driven antenna

With a reflector
With one or more directors
With a reflector and one or more directors
Only

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MORE MCQ ON Electromagnetic Field Theory

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