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Energy is the ability to do work, while charge is a property of matter that determines how it interacts with electric and magnetic fields. Energy can exist in various forms such as kinetic, potential, and thermal energy, while charge is typically associated with protons and electrons.
The potential difference between two points in a circuit is the energy required per unit charge to move a charge between those points. It represents the work done by an electric field on a charge as it moves through the circuit.
The potential difference between two spherical shells is the difference in electric potential energy per unit charge between the two shells. It is a measure of the work required to move a unit positive charge from one shell to the other.
The voltage difference between two points in an electrical circuit is best described as electrical potential difference. This represents the energy per unit charge required to move a charge between those points.
voltage
The amount of energy released per charge depends on the potential difference (voltage) across the circuit. This is determined by the difference in electrical potential energy between the positive and negative terminals, which enables the flow of electrons and the release of energy in the form of heat, light, or other forms of energy.