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Unformatted text preview: + q at centers of sides. Side length 2 d . Whats V at 3 rd apex? 2 q + q d 3 d For V calculation, ignore pre-existing pairs. 5 terms needed. 2 charges: V = k (2 q )/(2 d ) = kq / d 2 + close: V = k ( q )/( d ) = kq / d 1 + far: V = k ( q )/( 3 d ) = (1/ 3) kq / d V = (1/ 3) kq / d (others cancel)...
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