Question 19N.1.SL.TZ0.17

A negatively charged particle in a uniform gravitational field is positioned mid-way between two charged conducting plates.

The potential difference between the plates is adjusted until the particle is held at rest relative to the plates.

What change will cause the particle to accelerate downwards relative to the plates?

A. Decreasing the charge on the particle

B. Decreasing the separation of the plates

C. Increasing the length of the plates

D. Increasing the potential difference between the plates