Two particles each carrying a charge of `2 xx 10^-8` C and connected by a silk thread of length 1 m, are placed on a frictionless horizontal insulated table. What is the tension in the string?

Two charges of equal magnitude 2 xx 10^(-8) C separated by a silk thread of length 1 m are placed on an insulated, smooth, horizontal surface. Calculate the tension on the string.

Two identical bodies, each of mass m, are connected by a spring having spring constant k and they are placed on a frictionless floor. The spring is compressed a little and then released. What will be the frequency of oscillation of the system?

The bob of a pendulum of weight 80 mg carries a charge of 2xx10^(-8) C. The bob is at rest in a horizontal electric field of magnitude 2xx10^(4)V.m^(-1) . Determine the tension in the string and angle of the string with the vertical. Given, g=9.8m.s^(-2) .

Two particles, each of mass m and carrying a charge q, are suspended from a point by insulated strings each of length 1 cm. In equilibrium each string makes an angle of 45^(@) with the horizontal direction. Prove that, q=sqrt(2mg) , g = acceleration due to gravity.

Two bodies of masses m_(1) and m_(2) are connected by a weightless string and are kept on a frictionless, horizontal plane. If the body weighing m_(1) is pulled with a horizontal force F, then determine the common acceleration of the two bodies and the tension in the string.

Two negative point charges each of magnitude 8xx10^(-8)C and another positive charge Q are placed on the same straight line. At what position and for what value of Q, the system will remain in equilibrium?

A string of length 1 m is fixed at one end to a rigid support and carries a sphere of 100 g at the other end. The string makes (2)/(pi) revolutions per second around a vertical axis through the fixed end. Calculate The tension in the string and.

Four balls of mass 5 kg each are placed on the top of a horizontal turntable and fastened together with four strings of length 1 m each to from a square of side 1m. The axis of rotation passes through the centre of the square. Find the tension in the strings when the turntable is rotated at the rate of (30)/(pi) rpm.