Statement I: Speed of a negatively charged particle decreases while moving in the direction of an electric field.

Statement II: A positively charged particle moving in the direction of an electric field experience acceleration.

In the light of the above statement, choose the correct answer from the options given below.

Both statement I and statement II are true

The correct answer is option (1) : Both statement I and statement II are true

As the force on the electron due to external electric field acts in opposite direction to the electric field hence when electron moves in the direction of electric field its speed decreases.

The force on the proton due to external electric field is in the same direction of the electric field hence it experiences acceleration.