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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)?

 | E |.
 E.
 Null vector.
 Zero.

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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

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

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Neither accelerated nor retarded
Totally retarded
Accelerated
Retarded

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Electromagnetic Field Theory
The magnetic field required to reduce the residual magnetism to zero is called

 Coercivity.
 Saturation magnetism.
 Retentivity.
 Hysteresis.

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Electromagnetic Field Theory
How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m?

 1.5 mA.
 2.5 mA.
 2 mA.
 1mA.

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Electromagnetic Field Theory
Radiation intensity in a given direction is the

Power radiated per square metre
None of these
Power radiated per unit solid angle in that direction
Energy radiated per square metre

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MORE MCQ ON Electromagnetic Field Theory

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