The electrical energy difference between two points in a circuit is called

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The electrical energy difference between two points in a circuit is called

Voltage is the energy difference between two points in a circuit. It’s the energy per unit charge that a charge would gain or lose as it moves from one point to the other. This energy difference drives charges through the circuit, which is why a battery or power supply creates a voltage to push current around. The unit is the volt, with 1 volt equal to 1 joule per coulomb. It’s helpful to keep straight that current is about how much charge flows per second, not about energy difference; resistance describes how much a component resists that flow; and power is the rate at which energy is transferred, equal to voltage times current.

Voltage is the energy difference between two points in a circuit. It’s the energy per unit charge that a charge would gain or lose as it moves from one point to the other. This energy difference drives charges through the circuit, which is why a battery or power supply creates a voltage to push current around. The unit is the volt, with 1 volt equal to 1 joule per coulomb. It’s helpful to keep straight that current is about how much charge flows per second, not about energy difference; resistance describes how much a component resists that flow; and power is the rate at which energy is transferred, equal to voltage times current.

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