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Problems Based on Coulomb's Law

Question

Two identical balls, each having a charge of $$2.00\times 10^{-7}$$C and a mass of $$100$$g, are suspended from a common point by two insulating strings each $$50$$ cm long. The balls are held at a separation $$5.0$$cm apart and the released. Find the components of the resultant force on it along and perpendicular to the string. Answer is to be obtained only for the instant just after the release.

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Similar Questions

Q1

Two identical balls, each having a charge of $$2.00\times 10^{-7}$$C and a mass of $$100$$g, are suspended from a common point by two insulating strings each $$50$$ cm long. The balls are held at a separation $$5.0$$cm apart and the released. Find the components of the resultant force on it along and perpendicular to the string. Answer is to be obtained only for the instant just after the release.

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Q2

Two identical balls, each having a charge of $$2.00\times 10^{-7}$$C and a mass of $$100$$g, are suspended from a common point by two insulating strings each $$50$$ cm long. The balls are held at a separation $$5.0$$cm apart and the released. Find the electric force on one of the charged balls. Answer is to be obtained only for the instant just after the release.

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Q3

Two identical balls, each having a charge of $2.00 \times 10^{- 7} C$ and a mass of 100 g, are suspended from a common point by two insulating strings each 50 cm long. The balls are held at a separation 5.0 cm apart and then released. Find
(a) the electric force on one of the charged balls
(b) the components of the resultant force on it along and perpendicular to the string
(c) the tension in the string
(d) the acceleration of one of the balls. Answers are to be obtained only for the instant just after the release.

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Q4

Two small spheres, each having a mass of $$20$$g, are suspended from a common point by two insulating strings of length $$40$$cm each. The spheres are identically charged and the separation between the balls of equilibrium is found to be $$4$$cm. Find the charge on each sphere.

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Q5

Two small spheres, each having a mass of 20 g, are suspended from a common point by two insultating strings of length 40 cm each. The spehres are identically charged and the separation between the balls at equilibrium is found to be 4 cm. Find the charge on each spehere.

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