AP EAMCET Engineering 25 Apr 2017 Shift 1 Paper

Three charged particles of each mass 0.1 g and charge ‘q’ are suspended from a common rigid point by insulated massless threads of each 1 m long. If the three particles are in equilibrium and are located at the corners of an equilateral triangle of side 3 cm. the charge 'q' on each particle is_________nC. (The angle made by the line joining the centroid of the triangle and the point of suspension with the vertical is very small).
(Acceleration due to gravity = 10ms−2‌and‌ ‌

1

4πεo

=9×109Nm2c−2)