Question

what is potentional diffrence ?

Answer 1

pls help fast i also want to know .

Answer 2

Voltage is an informal term for electric potential difference and is also called electric tension. Voltage is a measure of the energy of electricity, specifically, it is the energy per unit charge. A voltage may represent a source of energy (electromotive force), or it may represent lost or stored energy (potential drop). Voltage is always measured between two points since it is not usually practical to measure the absolute electric potential of a point, and often, a common reference potential will be chosen, such as ground, from which to measure all other voltages. Voltage can be caused by static electric fields, by electric current through a magnetic field, by time-varying magnetic fields, or a combination of all three.
The voltage between two ends of a path is the total energy required to move a small electric charge along that path, divided by the magnitude of the charge. Mathematically this is expressed as the line integral of the electric field and the time rate of change of magnetic field along that path. In the general case, both a static (unchanging) electric field and a dynamic (time-varying) electromagnetic field must be included in determining the voltage between two points.

Answer 3

In simple terms, it is the difference in potential energy of a body between between two points of measurement. For example, consider two (similar) stones that are lifted and placed at different heights from the ground. Work is done to raise the stones from the ground to a given height. If stone s1 is raised to a height of 1m and stone s2 is raised to a height of 2m, the difference in work done to lift the two stones to their respective heights is the potential difference.