Physics
Grade-9
Easy
Question
At the mid-point between two equal but opposite charges.
- Potential energy > 0
- Potential energy < 0
- Potential energy =0
- Cannot be determined
Hint:
PE=Kq1q2/r
The correct answer is: Potential energy =0
- Given that the charges have equal magnitude and the distance from each of them to the mid point is the same and the signs are opposite.
- Then the magnitude of the potential energy contributed by each of the charges is same, but the signs are opposite.
- Therefore, the net potential energy should be zero(PE=0).
- So, the correct option is c.
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