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Four similar point charges q are located...

Four similar point charges q are located at the vertices of a tetrahedron with an edge a. the energy of the interaction of charges is:

A

`(3q^2)/(4πvarepsilon_0a)`

B

`q^2/(4πvarepsilon_0a)`

C

`q^2/(πvarepsilon_0a)`

D

`(3q^2)/(2πvarepsilon_0a)`

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