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Electromagnetic Field Theory

Electromagnetic Field Theory
The Biot-savarts law is a general modification of

 Kirchhoffs law.
 Amperes law.
 Faradays law.
 Lenzs law.

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Electromagnetic Field Theory
If the static magnetic flux density is B, then

 Divergence of B = J.
 Curl of B = J.
  Divergence of B = 0.
 Curl of B = 0.

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Electromagnetic Field Theory
Coulombs law for the force between electric charges most closely resembles with

 Newtons law of motion.
 Newtons law of gravitation.
 Law of conservation of energy.
 Gauss theorem.

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Electromagnetic Field Theory
A magnetic vector potential is given by the expression A = (- cos x) (cos y) uz. The flux density at the origin is

 2 ux.
 – 2 ux.
 – uy.
  0.

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

Accelerated
Totally retarded
Retarded
Neither accelerated nor retarded

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Electromagnetic Field Theory
The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying an current at 10 A, is

 0.015 J.
 0.15 J.
 1.15 J.
 0.5 J.

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MORE MCQ ON Electromagnetic Field Theory

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