Three charges $ - {q_1},\,\, + {q_2}$ and $ - {q_3}$ are placed as shown in the figure. The $x$-component of the force on $ - {q_1}$ is proportional to
Three charges $ - {q_1},\,\, + {q_2}$ and $ - {q_3}$ are placed as shown in the figure. The $x$-component of the force on $ - {q_1}$ is proportional to
- [AIEEE 2003]
- A
$\frac{{{q_2}}}{{{b^2}}} - \frac{{{q_3}}}{{{a^2}}}\,\sin \theta $
- B
$\frac{{{q_2}}}{{{b^2}}} - \frac{{{q_3}}}{{{a^2}}}\,\cos \theta $
- C
$\frac{{{q_2}}}{{{b^2}}} + \frac{{{q_3}}}{{{a^2}}}\,\sin \theta $
- D
$\frac{{{q_2}}}{{{b^2}}} + \frac{{{q_3}}}{{{a^2}}}\,\cos \theta $
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