SAT Subject Physics Practice Question 580: Answer and Explanation
An electron, a proton, and a neutron are located at point (A) above in an electric field. A short period of time passes. At which position as indicated by the letter on the diagram will the proton be located?
A. Point A
B. Point B
C. Point C
D. Point D
E. Point E
Correct Answer: C
The correct answer is (C). The proton carries a positive charge, and it will be repelled by the positive plate and attracted to the negative plate.