three equal charges q are placed at the corners of an equilateral triangle of side a. a charge Q is placed such that its distance from each charge is r. The force experienced by Q will be:
a. qQ/4π€0r²
b. qQ/4π€0(r+a)²
c. Qq√(9r²-3a²)/4π€0r³
d. qQ/2π€0(r²+a²)
please koi iska solution bta do answer is option c
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