How to determine the direction of a particle between two plates?

enter image source here
Here's my work :
enter image source here
Since #F_(el)>F_g,#the particle will move up with acceleration

1 Answer
Daniel H.
Mar 3, 2018

I agree with your work.

Explanation:

I agree that the particle will move up with acceleration. The only way the positively charged particle would accelerate towards the positively charged bottom plate is if the charge on that plate was so weak that it was less than the acceleration due to gravity.

I believe that whoever marked A as being the answer made a mistake.

Related questions
Impact of this question
1137 views around the world
You can reuse this answer
Creative Commons License