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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A small ball of mass 2 × 10^−3 kg, having a charge 1 μC, is suspended by a string of length 0.8m. Another identical ball having the same charge is kept at the point of suspension. Determine the minimum horizontal velocity that should be imparted to the lower ball so that it can make a complete revolution.

A small ball of mass 2 × 10^−3 kg, having a charge 1 μC, is suspended by a string of length 0.8m. Another identical ball having the same charge is kept at the point of suspension. Determine the minimum horizontal velocity that should be imparted to the lower ball so that it can make a complete revolution.

1 1)m. A small ball of mass 2 × 10^−3 kg Electric potential in a 3 dimensional space is given by V=(1/x+1/y+2/z) volt where x having a charge 1 μC maintained at a constant potential V Water from a tap y and z are in meter. A particle has charge q=1012C and mass m=10−9g and is constrained to move in xy plane. Find the initial acceleraton of the particle if it is released at (1