1.

Three charges are placed at the vertices of an equilateral triangle of side ?a? as shown in the following figure. The force experienced by the charge placed at the vertex A in a direction normal to BC is                                  [AIIMS 2003]

A. \[{{Q}^{2}}/(4\pi {{\varepsilon }_{0}}{{a}^{2}})\]
B. \[-{{Q}^{2}}/(4\pi {{\varepsilon }_{0}}{{a}^{2}})\]
C. Zero
D. \[{{Q}^{2}}/(2\pi {{\varepsilon }_{0}}{{a}^{2}})\]
Answer» D. \[{{Q}^{2}}/(2\pi {{\varepsilon }_{0}}{{a}^{2}})\]


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