A positive charge is placed at rest at the center of a region of space in which

Question

A positive charge is placed at rest at the center of a region of space in which there is a uniform electric field. (A uniform field is one whose strength and direction are the same at all points within the region.) What happens to the electric potential energy of the positive charge, after the charge is released from rest in the uniform electric field?

A. It will remain constant because the electric field is uniform.

B.It will decrease because the charge will move in the opposite direction of the electric field.

C.It will remain constant because the charge remains at rest.

D.It will decrease because the charge will move in the direction of the electric field.

E.It will increase because the charge will move in the direction of the electric field.

Explanation / Answer

Ans - correct option is D

.It will decrease because the charge will move in the direction of the electric field.

As we know F=qE i.e. electric field will apply a force on the positve charge in the direction of electric field which will accelerate the positive charge which results into conversion of potential energy into kinetic energy that is why potential energy of the positive charge is decreasing

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