question_answer

A cube of side \[b\] has a charge \[q\] at each of its vertices. The electric field due to this charge distribution at the centre of this cube will be                                 [KCET 1994, 2000]

A)                    \[q/{{b}^{2}}\]

B)                                      \[q/2{{b}^{2}}\]

C)                    \[32q/{{b}^{2}}\]

D)                                      Zero