The point charges `-2q, -2q` and `+q` are put on the vertices of an equilateral triangle of side `a`. Find the work done by some external force in increasing the separation to `2a` (in joules).

Three point charges IC, -2C and -2C are placed at the vertices of an equilateral triangle of side I m. The work done by an external force to increase the separation of the charges to 2 m in joule is ( epsilon_(0) = Permittivity of air)

Three point charges 1C, -2C and -2C are placed at the vertices of an equilateral triangle of side length one meter. The work done by an external force to increase the separation of the charges to 2 meters in joules is: ( in_(0) is permittivity of air)

Three charges q,q and -q are kept in the three vertices of an equilateral triangle of side l. Find out the resultant force on each of the charges.

Three charges 2q, -q, and -q are located at the vertices of an equilateral triangle. At the center of the triangle,

Three charges 2q, -q, and -q are located at the vertices of an equilateral triangle. At the center of the triangle,

Three point charges q, 2q and 3q are placed at the vertices of an equilateral triangle of side ‘a’. Find the electric potential and intensities at the geometric centre of the triangle.