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Electromagnetic Field Theory

Electromagnetic Field Theory
The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper cable of 60 mm diameter is

 3.2 µH.
 3.2 H.
 32 mH.
 3.2 mH.

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Electromagnetic Field Theory
The force experienced by a current carrying conductor lying parallel to a magnetic field is

 Bil sinθ.
 zero.
 Bil cosθ.
 BIL.

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Electromagnetic Field Theory
The static electric field in a conductor is

Zero
Infinity
Unity
None of these

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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

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

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Electromagnetic Field Theory
The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a

Null
Circle
None of these
Figure of eight

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Electromagnetic Field Theory
The electrical field strength at a distance point A due to a point charge +q, located at the origin, is 100 µl v/m. If the point charge is now enclosed by a perfectly conducting metal sheet sphere whose centre is at origin, A, outside the sphere, becomes

 None of above.
 - 100 μ v/m.
 0.
 100 μ v/m.

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