Physics
Grade-9
Easy
Question
If the charge is doubled, then the potential energy near it will
- Remain constant
- Increase
- Decrease
- Cannot be determined
Hint:
U=Kq1q2/r
The correct answer is: Increase
- Potential energy(U) is directly proportional to the product of two charges.
- And inversely proportional to the distance(r) between them.
- Therefore, if the charges are doubled then the potential energy becomes 4 times (means increases).
- So, the correct option is b.
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