1even though soln is given i cant figure.....out how does length of OA is root3
Three particles, each of mass 1 gm and carrying a charge q, are suspended from a common point by insulated massless string, each 100 cm long. If the particles are in equilibrium and are located at the corner of an equilateral triangle of side length 3 cm. The charge q on each particle is (g=10 m/s2)
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9 Answers
11concept: i donno the actual answer, but the electric fieled at the centre will be zero, it will form a 3 D figure like a prism
1let θ be the angle between the verticle with the string, then
Tcos θ = mg-----(1)
T sinθ = 2 F cos φ.....(2)
F = k q2/ 9---(3)
