The unit of electrical resistance is:

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Prepare for the PMMI Industrial Electricity Test with quizzes featuring flashcards and multiple-choice questions. Each answer is explained with hints to ensure a thorough understanding. Gear up to excel in your exam!

Multiple Choice

The unit of electrical resistance is:

Explanation:
Resistance is a measure of how much a component opposes the flow of electric current. By Ohm’s law, V = I R, the resistance is the voltage divided by the current, so the unit that results is the ohm (Ω), defined as one volt per ampere (Ω = V/A). The other quantities have different units: ampere for current, volt for voltage, and watt for power. Thus, the correct unit for electrical resistance is the ohm.

Resistance is a measure of how much a component opposes the flow of electric current. By Ohm’s law, V = I R, the resistance is the voltage divided by the current, so the unit that results is the ohm (Ω), defined as one volt per ampere (Ω = V/A). The other quantities have different units: ampere for current, volt for voltage, and watt for power. Thus, the correct unit for electrical resistance is the ohm.

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