Two charges `2muC` are placed at points A and B, 6 cm apart.
Identify an equipotential surface of the system.

Two point charges +q and -q are placed d distance apart. What is the zero potential plane for them?

Two point charges of 10 esu and 40 esu are located at points A and B seperated by a distance 4 cm. Find the electric field intensity at a point halfway between the charges.

Three charges each of +1muC are placed at the comers of an equilateral triangle. If the force between any two changes be F,then the net force on either change will be —

The distance between two points A and B in vacuum is 2d. At each of these two points a + Q charge is placed. P is the midpoint of AB. Find the intensity and potential at P due to the electric field. How will the values of these quantities change if the charge at B is replaced by a charge -Q ?

Two charges 2Q and -Q are placed at the points (a,0,0) and (4a,0,0) respectively. With the two charges situated at the cenres, two spheres of radii 2a and 8a are considered. What is the ratio of electric flux through the surfaces of the two spheres?

Electric charges of 1muC-1muC and 2muC are placed in air at the corners A, B and C respectively of an equilateral triangle ABC having length of each side 10cm. The resultant force on the charge at C is

Two point charges of magnitude +q and -q are placed at (-d/2, 0, 0) and (d/2, 0,0) respectively. Find the equation of the equipotential surface where the potential is zero.

Two charges of equal amount +Q are placed on a line. Another charge q is placed at the mid-point of the line. The system will be in equilibrium if the value of q is

Two charges of equal amount +Q are placed on a line. Another charge q is placed at the mid-point of the line. The system will be in equilibrium if the value of q is