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Electrical potential energy question.

Calculate the amount of electrical potential energy gained by an electron when it is moved from infinity to a point 0.5cm from another electron.

1. I have used V = 1/(4"π" ε0" " )xQ/r
2. Then I used W=QV to get the energy
3. The answer I got is : 4.6x10^-26

is this answer right?
Original post by Zevo
Calculate the amount of electrical potential energy gained by an electron when it is moved from infinity to a point 0.5cm from another electron.

1. I have used V = 1/(4"π" ε0" " )xQ/r
2. Then I used W=QV to get the energy
3. The answer I got is : 4.6x10^-26

is this answer right?


Yes. Correct answer and correct method.

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