Which is the unit of electrical resistance?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which is the unit of electrical resistance?

Explanation:
Electrical resistance is measured in ohms. The ohm, symbolized by the Greek letter Omega (Ω), is defined as the resistance between two points of a conductor when a constant potential difference of one volt, applied to those points, produces a current of one ampere (R = V / I). So one ohm equals one volt per ampere. The volt is the unit of electric potential difference, the ampere is the unit of current, and the watt is the unit of power (power = voltage × current).

Electrical resistance is measured in ohms. The ohm, symbolized by the Greek letter Omega (Ω), is defined as the resistance between two points of a conductor when a constant potential difference of one volt, applied to those points, produces a current of one ampere (R = V / I). So one ohm equals one volt per ampere. The volt is the unit of electric potential difference, the ampere is the unit of current, and the watt is the unit of power (power = voltage × current).

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