Electric charges of \[+10\mu C,\ +5\mu C,\ -3\mu C\] and \[+8\mu C\] are placed at the corners of a square of side \[\sqrt{2}\]m. the potential at the centre of the square is [KCET (Engg./Med.) 1999]

• A.            1.8 V                                        
• B.            \[1.8\times {{10}^{6}}\] V
• C.            \[1.8\times {{10}^{5}}\]V
• D.                                      \[1.8\times {{10}^{4}}\]V