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Electromagnetic Field Theory

Electromagnetic Field Theory
1 Maxwell is the same as

 10-8 weber.
 10-8 weber.
 104 weber.
 10-4 weber.

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

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Electromagnetic Field Theory
A medium is said to be isotropic when

 ∈ = μσ.
 ∈ is a scalar constant.
 ∈ = μ.
 ∈ is zero.

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Electromagnetic Field Theory
The Kirchhoff’s current law is implict in expression

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

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Electromagnetic Field Theory
It is best to use for coupling a coaxial line to a parallel wire transmission line.

Directional Coupler
Tee
Slotted line
Balun

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Electromagnetic Field Theory
In above problem the induced emf will be reduced to half if the conductor moves an angle of

  45° to the direction of field.
  30° to the direction of field.
  75° to the direction of field.
  60° to the direction of field.

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