The figure shown four situations in which charges as indicated `(q gt 0)` are fixed on an axis. How many situations is there a point to the left of the charges where an electron would be ib equilibrium?

For the given situation as shown in the figure, the value of q theta keep the system in equilibrium will be

Two fixed charges are as shown. Where should the third charge be placed so that its in equilibrium?

Four equal charges are kept fixed on the vertices of a square of side 'a'. A charge q_1 is kept at the centre of the square as shown in the figure . Then

Following figures show four situations in which positive and negative charges move horizontaly through a region and give the rate at which each charge moves. Rank the situations according to the effective current through the region greatest first.

Following figures show four situations in which positive and negative charges move horizontaly through a region and give the rate at which each charge moves. Rank the situations according to the effective current through the region greatest first.

Four charges each of -Q , are placed at the four corners of a square. Find out the value of a charge q placed at the centre of the square, such that all the charges would be at equilibrium.

Two fixed point charges + 4q and + q are separated by a distance d. Where should the third point charge be placed for it to be in equilibrium?

Gauss's theorem is true for any point charge situated any where

Two equal negative charges are fixed at points and on y-axis. A positive charge Q is released from rest at the point on the x-axis. The charge Q will:

A figure below shows the forces that three charged particles exert on each other. Which of the four situations shown can be correct .