Three charges are placed at the vertices of an equilateral triangle of side 'a' as in fig. The force experienced by the charge pleased at the vertex A in a direction parallel to BC is:

Options

A. `Q^2/(4pi in_0 a^2)`
B. `(-Q^2)/(4pi in _0 a^2)`
C. Zero
D. `Q^2/(2 pi in _0 a^2)`

Answer

A