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

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

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Electromagnetic Field Theory
A wire carrying current is bent in the form of a circular loop. Then the magnetic field around each portion of the wire will be

 none of above.
 perpendicular to the circumference of the wire.
 parallel to half portion and perpendicular for the other half.
 parallel to the plane of the wire.

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Electromagnetic Field Theory
A long wire composed of a smooth round conductor runs above and parallel to the ground (assumed to be a large conducting plane). A high voltage exists between the conductor and the ground. The maximum electric stress occurs at

 upper surface of the conductor.
 the ground surface.
 lower surface of the conductor.
 midway between the conductor and ground.

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Electromagnetic Field Theory
Which of following is true for a purely inductive circuit ?

 Any capacitance even if present in the circuit will not be charged.
 Reactive power of the circuit is zero.
 Actual power of the circuit is zero.
 Apparent power of the circuit is zero.

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