Electromagnetic Field Theory
Inside a hollow conducting sphere

 electric field is a non zero constant.
 electric field changes with magnitude of the charge given to the conductor.
 electric field changes with distance from the center of the sphere.
 electric field is zero.

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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

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

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Electromagnetic Field Theory
A copper disc is rotated rapidly below a freely suspended magnetic needle. The magnetic needle starts rotating with velocity

 less than that of disc and in the same direction.
 equal to that of disc and in the opposite direction.
 less than that of disc but in opposite direction.
 equal to that of disc and in the same direction.

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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

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

ANSWER DOWNLOAD EXAMIANS APP