Electrolysis Practice Exam

Which unit measures the rate of electron flow in a conductor?

1. Volts

2. Amperes

3. Ohms

4. Coulombs

The correct answer is: Amperes

The unit that measures the rate of electron flow in a conductor is Amperes. In electrical terms, an ampere, often abbreviated as amp, represents the flow of electric charge. Specifically, one ampere equates to one coulomb of charge passing through a conductor in one second. This measure reflects the amount of charge carriers, primarily electrons, that traverse the circuit, indicating how much current is flowing. To understand the context of the other options: Volts are a measure of electrical potential or voltage, which indicates the potential energy per unit charge. Ohms measure resistance, which quantifies how much a conductor opposes the flow of electric current. Lastly, Coulombs are a unit of electric charge, representing the quantity of electrons, but they do not measure the flow rate. Therefore, amperes effectively describe the continuous flow of electric current through a conductor, making them the correct choice for this question.