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Two identical balls each having a density ρ are suspended in vacuum 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 θ with vertical. Now both the balls are immersed in a liquid, as a result the angle θ does not change. If the density of the liquid is σ, then find the dielectric constant of the liquid. |
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Answer» Two identical balls each having a density ρ are suspended in vacuum 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 θ with vertical. Now both the balls are immersed in a liquid, as a result the angle θ does not change. If the density of the liquid is σ, then find the dielectric constant of the liquid. |
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