Four equal point charges Q each are placed in the xy plane at (0,2),(4,2),(4,−2) and (0,−2) . The work required to put a fifth charge Q at the origin of the coordinate system will be:
Held on 10 Jan 2019 · Verified 6 Jul 2026.
4πϵ0Q2
22πϵ0Q2
4πϵ0Q2(1+51)
4πϵ0Q2(1+31)
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