## UnkleRhaukus Group Title electrostatic potential energy of a system of three charges one year ago one year ago

1. UnkleRhaukus

$U=K\left(\frac{q_1q_2}{r_{12}}+\frac{q_1q_3}{r_{13}}+\frac{q_2q_3}{r_{23}}\right)$

2. UnkleRhaukus

right?

3. RajshikharGupta

yes it is so what?...!!

4. UnkleRhaukus

so i must be pressing the wrong number on the calculator then

5. RajshikharGupta

no it is not it is valid only for point charges so better check it !

6. UnkleRhaukus

the charges are points in my question

7. RajshikharGupta

then it is all right !!..

8. UnkleRhaukus

now i see what i was forgetting