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AP® Physics 1 & 2

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Proton Between Charged Plates

APPH12-CMXYG9

A proton is released from rest in the uniform electric field present in the space between two oppositely-charged metal plates.

Which of the following statements is TRUE regarding the proton's motion due to the field?

I. The proton tends to move in the same direction as the field lines point.

II. The proton tends to move toward the plate at the higher potential.

III. As the proton moves, its electrical potential energy decreases.

A

I only

B

I and II only

C

I and III only

D

I, II, and III