A positive charge ismoved from one location on an equipotential to another point

Question

A positive charge ismoved from one location on an equipotential to another point on thesame equipotential.
Is the work done on the charge positive,negative, or zero?
Choose the best explanationfrom among the following:

Because the charge is positive the work done onit is also positive.
It takes negative work to keep the positivecharge from accelerating as it moves along the equipotential. The electric field is perpendicular to anequipotential, therefore the work done in moving along anequipotential is zero.


A positive charge ismoved from one location on an equipotential to another point on thesame equipotential.
Is the work done on the charge positive,negative, or zero?
Choose the best explanationfrom among the following:

Because the charge is positive the work done onit is also positive.
It takes negative work to keep the positivecharge from accelerating as it moves along the equipotential. The electric field is perpendicular to anequipotential, therefore the work done in moving along anequipotential is zero.


Is the work done on the charge positive,negative, or zero?
Choose the best explanationfrom among the following:

Because the charge is positive the work done onit is also positive.
It takes negative work to keep the positivecharge from accelerating as it moves along the equipotential. The electric field is perpendicular to anequipotential, therefore the work done in moving along anequipotential is zero.

Choose the best explanationfrom among the following:

Because the charge is positive the work done onit is also positive.
It takes negative work to keep the positivecharge from accelerating as it moves along the equipotential. The electric field is perpendicular to anequipotential, therefore the work done in moving along anequipotential is zero.

Explanation / Answer

The workdone is zero because The electric field is perpendicular to an equipotential,therefore the work done in moving along an equipotential iszero

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