The systerm of two fictitious poles separated by certain distance is called as

The system of two fictitious poles separated by certain distance is called as

A device cosisting of two fictitious poles separated by a finite distance is

A system of two charges separated by a certain distance apart stores electrical potential energy. If the distance between them is increased, the potential energy of the system,

Two equal and opposite charges separated by a short distance is called an

The force between two magnet poles separated by a distance 'd' in air is 'F'. At what distance between them does the force become doubled ?

Consider two point charges of equal magnitude and opposite sign separated by a certain distance. The neutral point due to them