The flow of electrical charge (ions) between two points, which can be used to do work, is called

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Multiple Choice

The flow of electrical charge (ions) between two points, which can be used to do work, is called

Explanation:
Current is the flow of electrical charge between two points that can do work. It measures how much charge passes a point per second, with the unit ampere. The flow is driven by a voltage difference (the push that moves charges) and is opposed by resistance (which slows it). Power describes how quickly energy is transferred, equal to voltage times current. In biology, ions moving through membranes create currents that power signals and muscle activity. So the term for the actual movement of charge capable of performing work is current.

Current is the flow of electrical charge between two points that can do work. It measures how much charge passes a point per second, with the unit ampere. The flow is driven by a voltage difference (the push that moves charges) and is opposed by resistance (which slows it). Power describes how quickly energy is transferred, equal to voltage times current. In biology, ions moving through membranes create currents that power signals and muscle activity. So the term for the actual movement of charge capable of performing work is current.

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