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Byju's Answer

Standard XIII

Physics

Potential Gradient and Relation between Electric Field and Potential

In the follow...

Question

In the following figure two parallel metallic plates are maintained at different potentials. If an electron is released midway between the plates, it will move

Right ward at constant speed

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Left ward at constant speed

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Accelerates right ward

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Accelerates left ward

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Solution

The correct option is D Accelerates left ward
Electric field is directed right ward (higher potential of – 200 V to lower potential of – 400 V). When electron is left free in an electric field it accelerates opposite to the electric field. Hence in the given case electron accelerates to the left.

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