1.

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

Answer»

`(q_(2))/(B^(2))-(q_(3))/(a^(2))COSTHETA`
`(q_(2))/(b^(2))+(q_(3))/(a^(2))sintheta`
`(q_(2))/(b^(2))+(q_(2))/(a^(2))costheta`
`(q_(2))/(b^(2))-(q_(2))/(a^(2))sintheta`

ANSWER :B


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