What is the unit for voltage?

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Multiple Choice

What is the unit for voltage?

Voltage is the electric potential difference, which tells you how much energy is available to push charges through a circuit. The unit is the volt. One volt means one joule of energy per coulomb of charge, so moving one coulomb across that potential difference changes its energy by one joule. This sets voltage apart from current (measured in amps, how much charge flows per second), resistance (ohms, how strongly a material resists that flow), and energy (joules, total energy involved). So volts are the natural way to express energy per unit charge.

Voltage is the electric potential difference, which tells you how much energy is available to push charges through a circuit. The unit is the volt. One volt means one joule of energy per coulomb of charge, so moving one coulomb across that potential difference changes its energy by one joule. This sets voltage apart from current (measured in amps, how much charge flows per second), resistance (ohms, how strongly a material resists that flow), and energy (joules, total energy involved). So volts are the natural way to express energy per unit charge.

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