Electromagnetic Field Theory
A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 × 103 N, is known as

 pico - coulomb.
 micro - coulomb.
 coulomb.
 milli - coulomb.

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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 exits between the conductor and the ground. The maximum electric stress occur at

 Midway between the conductor and ground.
 The upper surface of the conductor.
 The lower surface of the conductor.
 The ground surface.

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