What is the difference between potential energy and potential?
Electric potential energy is the potential energy stored when charges are out of equilibrium (like gravitational potential energy). Electric potential is the same, but per charge, U e q . An electric potential difference between two points is called voltage, V = U e 2 q − U e 1 q .
Potential Difference. Potential difference , or voltage, is the difference in electric potential energy between two points. It is denoted by ∆V and has units of volts, or joules per Coulomb. Potential is the specific potential energy.
- If the electric potential difference between two locations is 3 volts, then one coulomb of charge will gain 3 joules of potential energy when moved between those two locations. Because electric potential difference is expressed in units of volts, it is sometimes referred to as the voltage.
- Two identical resistors connected in series will share the potential difference. They will get half each. For example if two identical resistors are connected in series to a 3 V cell then the potential difference across each of them is 1.5 V.
- Potential difference (V) – is measured in volts (V). Potential difference is the work done per unit charge. A potential difference of 1 V means that 1 joule of work is done per coulomb of charge.
The volt (symbol: V) is the derived unit for electric potential, electric potential difference, and electromotive force. The volt is named in honour of the Italian physicist Alessandro Volta (1745–1827), who invented the voltaic pile, possibly the first chemical battery.
- The charge of an object is measured in coulombs (C). If the object has a charge of one coulomb, and the work done in moving the charge between the two points is one joule, the potential difference between the points is one volt. One volt is one joule per coulomb. This allows us to use the equation W = QV.
- noun. the difference in electric potential between two points in an electric field; the work that has to be done in transferring unit positive charge from one point to the other, measured in volts.
- One Volt is equivalent to one Joule per Coulomb. If the electric potential difference between two locations is 1 volt, then one Coulomb of charge will gain 1 joule of potential energy when moved between those two locations.
Updated: 21st October 2019