A coulomb is a unit that measures what quantity?

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Multiple Choice

A coulomb is a unit that measures what quantity?

The Coulomb measures electric charge—the quantity of charge present or transferred. It specifically quantifies how much electric charge is involved in a process, not the energy or the potential or the flow rate itself. Voltage is the electric potential difference, measured in volts. Resistance is how much a material opposes current, measured in ohms. Current is the rate at which charge flows, measured in amperes. The link between them is Q = I × t, so moving a current of 1 ampere for 1 second transfers 1 coulomb of charge. This is why the unit Coulomb is the unit for charge.

The Coulomb measures electric charge—the quantity of charge present or transferred. It specifically quantifies how much electric charge is involved in a process, not the energy or the potential or the flow rate itself. Voltage is the electric potential difference, measured in volts. Resistance is how much a material opposes current, measured in ohms. Current is the rate at which charge flows, measured in amperes. The link between them is Q = I × t, so moving a current of 1 ampere for 1 second transfers 1 coulomb of charge. This is why the unit Coulomb is the unit for charge.

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