Electric Potential and Potential Energy

A particle with charge 8.00×10−19 C is placed on the xaxis in a region where the electric potential due to other charges increases in the +x direction but does not change in the y or z direction.

Part A

The particle, initially at rest, is acted upon only by the electric force and moves from point a to point b along the x axis, increasing its kinetic energy by 9.60×10−19 J . In what direction and through what potential difference Vb−Va does the particle move?

The particle, initially at rest, is acted upon only by the electric force and moves from point a to point b along the x axis, increasing its kinetic energy by 9.60×10−19 . In what direction and through what potential difference does the particle move?

The particle moves to the left through a potential difference of Vb−Va= 1.20 V .
The particle moves to the left through a potential difference of Vb−Va= -1.20 V
The particle moves to the right through a potential difference of Vb−Va= 1.20 V .
The particle moves to the right through a potential difference of Vb−Va= -1.20 V .
The particle moves to the left through a potential difference of Vb−Va= 12.0 V .
The particle moves to the right through a potential difference of Vb−Va= -12.0 V .
Part B

If the particle moves from point b to point c in the y direction, what is the change in its potential energy, Uc−Ub?

If the particle moves from point b to point c in the y direction, what is the change in its potential energy, ?

+ 9.60×10−19 J
− 9.60×10−19 J
0