[" A charge "q" is placed at "(a,0,0)" and "],[" another charge "-q" is placed at "(0,a,0)],[" .What is the magnitude of dipole "],[" moment of the system? "]

Electric potential is a scalar quantity. Due to a point charge charge q at distance r, the potential is given by V=(q)/(4pi in_(0)r) . A point charge q is placed at (3a, 0) and another charge -2q is placed at (-3a, 0) . At how many points on the x-axis, (at finite distance) electric potential will be zero?

A positive point charge q_(1) is placed at (a,0) and another positive point charge q_(2) is placed at (0,a) . Find the force acting on q_(1) .

Electric potential is a scalar quantity. Due to a point charge charge q at distance r, the potential is given by V=(q)/(4pi in_(0)r) . A point charge q is placed at (3a, 0) and another charge -2q is placed at (-3a, 0) . If we plot a graph of potential (V) on x-axis it will be like:

Six negative equal charge are placed at the vertical of a regular hexagon . 6q charge is placed at the centre of the hexagon . Find the electric dipole moment of the system.

Electric charges -q -q -q and 3q are placed at the corners of a square ABCD of length 1 as shown in figure.The magnitude of electric dipole moment of the system is

Electric charges q, q, –2q are placed at the corners of an equilateral triangle ABC of side l. The magnitude of electric dipole moment of the system is