Force between parallel plates in a capacitor

AI Thread Summary
To calculate the force between parallel plates in a capacitor, one must first determine the work done in moving one of the plates. The discussion highlights the need for a relevant formula to facilitate this calculation, as the original poster is struggling to find one. A suggested resource is a lecture video that may provide clarity on the topic. Understanding the relationship between work, charge, and electric field is crucial for solving the problem. Ultimately, grasping these concepts will lead to the correct calculation of the force between the plates.
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Homework Statement



Hey guys.
So, I got this problem.
According to their hint I'm suppose to calculate the work of moving one of the plates and from their, get to the force.
I don't have a clue how to do that. I can't find a single formula that can help with that.
Can I please have some help...?:smile:

Thanks.


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The Attempt at a Solution

 

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Here. You can watch the first part of this lecture:

https://www.youtube.com/watch?v=7NUbsQt-G9U
 

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