Electrostatics

Question: 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



1) \[{Q^2}/(4\pi {\varepsilon _0}{a^2})\]
2) \[ - {Q^2}/(4\pi {\varepsilon _0}{a^2})\]
3) Zero
4) \[{Q^2}/(2\pi {\varepsilon _0}{a^2})\]
Solution: Explanation: 3e

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