Which is the correct unit for measuring electrical resistance?

Study effectively for the Burglar and Residential Fire Alarm Exam. Use multiple-choice quizzes, flashcards, and detailed explanations to get prepared and confident for your certification test.

Multiple Choice

Which is the correct unit for measuring electrical resistance?

Explanation:
Measuring how much a component resists current is expressed in ohms. Resistance is defined by R = V / I, linking resistance to voltage (volts) and current (amperes). The unit for resistance is the ohm, symbolized by the Greek letter omega. One ohm equals one volt per ampere. The other units measure voltage, current, and power, not resistance, so they don’t describe opposition to current.

Measuring how much a component resists current is expressed in ohms. Resistance is defined by R = V / I, linking resistance to voltage (volts) and current (amperes). The unit for resistance is the ohm, symbolized by the Greek letter omega. One ohm equals one volt per ampere. The other units measure voltage, current, and power, not resistance, so they don’t describe opposition to current.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy