Question

介 二
( left(operatorname{arsin}^{4} xright) )
( x cos 30=a / 2 )
( x=a / sqrt{3} )
( frac{k Q_{c}^{2}}{a^{2}}+frac{k Q_{6}^{2}}{a^{2}}+frac{3 k Q^{4}}{a^{2}}=0 )
( frac{3 x+9}{9^{x}}=frac{-2 x^{2}-2}{x^{2}} )
( 3 q=-29 )
( 9-frac{-28}{3} )
( frac{k(0)^{2}}{a^{2}} frac{sqrt{3}}{2} x y=frac{-k g^{2}}{a^{2}} )
( 9=frac{-8}{sqrt{3}}(A) )

# Electrostatics ALLEN 11. A charge q is placed at the centroid of an equilateral triangle. Three equal charges Q are placed at the vertices of the triangle. The system of four charges will be in equilibrium ifq is equal to :- . 1

Solution