A positive electric charge is moved at a constant speed between two locations in an electric field, with no work done by or against the field at any time during the motion This situation can occur only if the

(A) charge is moved in the direction of the field
(B) charge is moved opposite to the direction of the field
(C) charge is moved perpendicular to an equipotential line
(D) charge is moved along an equipotential line
(E) electric field is uniform

D. Charge is moved along an equipotential line

Explanation:

This means that the potential will be the same sown each equipotential line, which implies that the charge does not require any work before it moves anywhere along the line. Although work is required for a charge to move from an equipotential line to another, in all situations equipotential lines are vertical to electric field lines.

answer:

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explanation: