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Electromagnetic Field Theory

Electromagnetic Field Theory
If E is the electric field intensity, then what is the value of divergence of (curl of E)?

 Null vector.
 Zero.
 E.
 | E |.

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Electromagnetic Field Theory
A conductor of length L has current I passing through it, when it is placed parallel to strong magnetic field. The force experienced by the conductor will be

 BL2I.
 zero.
 BIL.
 BI2L.

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Electromagnetic Field Theory
Tropospheric scatter propagation is not subject to any fading.

False
True

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Electromagnetic Field Theory
Find the length of a conductor which is moving with a velocity 0.4m/s in a magnetic field of 8T, inducing an emf of 20V.

 0.5m.
 6.25m.
 0.6m.
 5.25m.

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Electromagnetic Field Theory
A wire 1 m long carries a current of 5A and is at an angle of 30o with B = 1.5 wb/m2. Magnitude of force is

 2 N.
 2.5 N.
 5 N.
 3.75 N.

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Electromagnetic Field Theory
Magnetic flux density emerging out of a closed surface is

 depends on magnetic movements outside the closed surface
 zero.
 depends on magnetic movements inside the closed surface.
 infinite.

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MORE MCQ ON Electromagnetic Field Theory

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