Electric Potential: Help Solving 500nC & -600nC Charge Problem

AI Thread Summary
To solve the problem of bringing a -600 nC charge from infinity to 1 mm from a 500 nC charge, use the electric potential formula V = Q / (4πE₀R) to calculate the potential created by the 500 nC charge. The key is to recognize that the first charge does not move, so the work done is based solely on the potential it generates. The potential energy can then be found using the formula for potential energy, which is the product of the second charge and the potential. Understanding the distinction between electric potential and energy is crucial for accurately solving the problem. This approach will yield the energy released during the process.
DR33
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Hi, I've tried this # for so long, and still, I can't figure it out. Here it is:

A charge of 500nC is situated at the origin. Determine the amount of energy released in bringing a charge of -600 nC from infinity to a ditance of 1mm from the fixed charge.

I've tried using in first place the electric potential formula: V = Q / 4(pi)EoR
but the thing that'S confusing me is that I have to different charges. Can Anyone help? Thank you
 
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Just use the potential for the first charge to get the work it does on the second charge. Since the first charge isn't moving, no work is being done on it.
 
potential energy = qV
V is the electric potential only...

you got to know the different between potential and energy...
 

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