A ball of mass `m=0.5kg` is suspended by a thread and a charge `q=0.1muC` is supplied when a ball with diameter `5cm` and a like charge of same magnitude is brought close to the first ball but below it the tension decreases to `1//3` of its intial value .The distance between centres of the balls is

A ball of mass 0.1 kg is suspended by a string. It is displaced through an angle of 60^(@) and left. When the ball passes through the mean position, the tension in the string is

Calculate the interaction energy of two balls whose charges q_(1) and q_(2) are spherically. The distanace between teh centres of the balls is equal to l .

A ball of mass 0.1kg is suspended by a string 30 cm long Keeping the string always taut the ball describe a horizontal circle of radius 15cm Calculate the angular speed of the ball .

A ball of mass 0.1 kg is suspended by a string 30 cm long. Keeping the string always taut, the ball describes a horizontal circle of radius 15 cm. Find its angular speed and tension.

Two identical small equally charged conducting balls are suspended from long threads secured at one point. The charges and masses of the balls are such that they are in equilibrium when the distance between them is a(the length of thread Lgtgta ). Then one of the balls is discharged. what will be the distance b(bltltL) between the balls when equilibrium is restored?

Two identical small equally charged conducting balls are suspended from long threads secured at one point. The charges and masses of the balls are such that they are in equilibirum whaen th distance between them is a(the length of thread Lgtgta ). Then one of the balls is discharged. what will be the distance b(bltltL) between the balls when equilibrium is restored?

A small ball of paper has mass 9xx10^(-5) kg and carries a charge of 5muC . When it is held over another charged ball of paper at a distance of 2cm above it, the two balls stay in equilibrium. What is the charge on the second hall ?

A charged ball of mass 5.88xx10^(-4) kg is suspended from two silk strings of equal lengths so that the strings are inclined at 60^(@) with each other. Another ball carrying a charge which is equal in magnitude but opposite in sign of the first one is placed vertically below the first one at a distance of 4.2xx10^(-2) m . Due to this, the tension in the strings is doubled. Determine the charge on the ball and the tension in the strings after electrostatic interaction. (g=9.8 m//s^(2))

A charged ball of mass 5.88xx10^(-4) kg is suspended from two silk strings of equal lengths so that the strings are inclined at 60^(@) with each other. Another ball carrying a charge which is equal in magnitude but opposite in sign of the first one is placed vertically below the first one at a distance of 4.2xx10^(-2) m . Due to this, the tension in the strings is doubled. Determine the charge on the ball and the tension in the strings after electrostatic interaction. (g=9.8 m//s^(2))

A small positively charged ball of mass m is suspended by an insulating thread of length L. This ball remains in equilibrium with string horizontal when another small charged ball is placed exactly at a distance L below the point of suspension of the first ball. The second ball is slowly moved away from the first ball to a far away point. (The second ball is moved horizontally so that the first ball does not accelerate). As a result the first ball lowers down to the original position of the second ball and the string become vertical. Find the work done by the external agent in removing the second ball.