Explain magnitude of the electrostatic potential energy

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Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy. Ignore sign.

q1= +1
q2= -1
d= 3A

q1= +1
q2= -1
d= 1A

q1= +4
q2= -4
d= 4A

Reference no: EM13212662

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