The figure shows a region in space with a uniform electric field. A negative ele

Question

The figure shows a region in space with a uniform electric field. A negative electric charge can be placed at two positions, position 1 and position 2. The positions are indicated in red in the figure. Compare the electric forces on the charge in position 1 and 2. Which one of the following statements is true?

Force at both positions has the same magnitude but is in opposite directions.

Force at both positions is the same but not zero.    

Force at both positions is zero.

Force on charge is greater at 1.

Force at both positions has a different magnitude but is in the same direction.

Force on charge is greater at 2.

The answer is B. Can someone please explain why? I thought that they would have the same direction but different forces because one is further down the electric field where it would be stronger. Thanks.

Explanation / Answer

the force on a charged particle is F = Eq

given uniform electric field...means at any point in the region field is same and magnitude of charge also same.

so in the formula E and q are same for two charges hence forces acting on them by electric field also same.

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