What electrical quantity expresses the rate of current flow?

What electrical quantity expresses the rate of current flow?

• A. Inductance
• B. Voltage
• C. Resistance
• D. Amperage

Answer: (D)

Current is the rate at which electric charges pass a point in a circuit, and amperage is the magnitude of that flow. The ampere, the unit for amperage, is defined as one coulomb of charge passing a point every second. So when we talk about the rate of current flow, we’re talking about current, or amperage. Inductance describes how a circuit resists changes in current due to magnetic effects and is measured in henries. Voltage is the electrical potential difference that pushes charges through a circuit, measured in volts. Resistance is the opposition to current flow, measured in ohms.

Current is the rate at which electric charges pass a point in a circuit, and amperage is the magnitude of that flow. The ampere, the unit for amperage, is defined as one coulomb of charge passing a point every second. So when we talk about the rate of current flow, we’re talking about current, or amperage. Inductance describes how a circuit resists changes in current due to magnetic effects and is measured in henries. Voltage is the electrical potential difference that pushes charges through a circuit, measured in volts. Resistance is the opposition to current flow, measured in ohms.