If two balls of given masses and charges are released, which of the following is the correct arrangement in equilibrium?

Which of the following is not arranged in correct sequence?

For a reaction at equilibrium which of the following is correct ?

For a reaction at equilibrium which of the following is correct ?

two pith balls each with mass m are suspended from insulating threads. When the pith balls are given equal positive charge Q, they hang in equilibirum as shown. We now increase the charge on the left pith ball from Q to 2Q while leaving its mass essentially unchanged. Which of he following diagrams best represent the new equilibrium configuration?

two pith balls each with mass m are suspended from insulating threads. When the pith balls are given equal positive charge Q, they hang in equilibirum as shown. We now increase the charge on the left pith ball from Q to 2Q while leaving its mass essentially unchanged. Which of he following diagrams best represent the new equilibrium configuration?

Mid way between the two equal and similar charges , we place the third equal and similar charge. Which of the following statements is correct , concerned to the equilibrium along , the line joining the charges ?

The surface density of charge on a large vertical positively charged plate is sigma C* m ^ ( -2 ) . A string attaches a metal ball of mass M and charge + q with the plate. Find out the angle between the string and the plate in equilibrium.