Question

Points A, B, and C lie along a line from left to right, respectively. Point B is at a lower electric potential than point A. Point C is at a lower electric potential than point B. Which one of the following statements best describes the subsequent motion, if any, of a positively-charged particle released from rest at point B?
A) The particle will accelerate in the direction of point C.
B) The particle will move at constant velocity in the direction of point C.
C) The particle will remain at rest.
D) The particle will move at constant velocity in the direction of point A.
E) The particle will accelerate in the direction of point A.

Answer 1

Answer:

A) The particle will accelerate in the direction of point C.

Explanation:

As we know that

potential at points A, B,C and D as V_A, V_B, V_C, V_D  and it is clear from the question that

V_A>V_B>V_C

And we know that flow is always from higher to lower potential (for positive charge due to positive potential energy).

So the charge will accelerate from B toward C.

Hence, the correct option is A.