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Two identical balls each having density P are suspended from a common point by two insulating strings of equal length. Both the balls have equal mass and charge. In equilibrium each string makes an angle theta with vertical. Now both the balls are immersed in liquid. As a result the angle does not change. the density of the liquid is sigma. find the dielectric constant of the liquid .

Two identical balls each having density P are suspended from a common point by two insulating strings of equal length. Both the balls have equal mass and charge. In equilibrium each string makes an angle theta with vertical. Now both the balls are immersed in liquid. As a result the angle does not change. the density of the liquid is sigma. find the dielectric constant of the liquid .

Grade:12

2 Answers

akhil mahajan
36 Points
12 years ago
first try to draw the FBD
balance forces
try to eliminate some things and u'll get K in terms of some given conditions.
Musa
19 Points
4 years ago
First make fbd. Make three forces in each case and use lami`s theorem. Then solve the forces by triangle law or parallelogram law

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