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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 |.
 Null vector.
 Zero.
 E.

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Electromagnetic Field Theory
As a result of reflection from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater than the velocity of light in space. This is called the

 normal velocity.
 group velocity.
 phase velocity.
 velocity of propagation.

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Electromagnetic Field Theory
The force on a charge moving with velocity v under the influence of electric and magnetic fields is given by which one of the following

 q(E + B × V).
 q(E +V × H).
 q(E + V × B).
 q(H + V × E).

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Electromagnetic Field Theory
The principle of dynamically induced emf is utilized in a

 generator.
 choke.
 thermocouple.
 transformer.

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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

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

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Electromagnetic Field Theory
A magnetic circuit requires 800 AT to produce a certain quantity of flux in a magnetic circuit. If its excitation coil has 100 turns and 5 Ohm resistance, the voltage to be applied in exciting coil is

 80 V.
 8 V.
 60 V.
 40 V.

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MORE MCQ ON Electromagnetic Field Theory

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