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Question : A free electron and a free proton are placed between two oppositely charged parallel plates. Both are closer to the positive plate than the negative plate. 

Which of the following statement is true?

I. The force on the proton is greater than the force on the electron.

II. The potential energy of the proton is greater than the force on the electron.

III. The potential energy of the proton and electron is the same. 

a) I only

b) II only 

c) III and I only

d) II and I only.

Doubt by Anushka

Ans : b) is the correct option.

Solution  : Detailed solution is coming soon.