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Electromagnetic Field Theory

Electromagnetic Field Theory
Two parallel plates are separated by a distance D charged by V volt. The field intensity E is given by,

 V / D
 V × D²
 V² / D
 V × D

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Electromagnetic Field Theory
The drawback of Daltons atomic structure is that, it says

 unique nature of atom.
 none of these.
 most of the volume of an atom is empty space.
 the atoms can neither be created nor be destroyed.

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Electromagnetic Field Theory
When a wave is incident from the more dense into a less dense medium at an angle equal to or exceeding the critical angle, the wave suffers total internal __________ .

Refraction
None of these
Reflection
Transmission

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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 Kirchhoff’s current law is implict in expression

 Divergence of D = ρv.
  Surface integral of (j.ds) = 0.
 Divergence of B = 0.
 Curl of H = J + (δ D)/(δ t).

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Electromagnetic Field Theory
Voltage applied across a dielectric produces an electrostatic field 50 times greater than air. The dielectric constant of the dielectric will be

 5.
 10.
 20.
 50.

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