Resistance is measured in

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Get ready for the NCCER Introduction to Electrical Circuits exam. Study with multiple choice questions, each question comes with hints and explanations. Ace your exam with confidence!

Multiple Choice

Resistance is measured in

Explanation:
Resistance is the measure of how much a component opposes the flow of electric current. The standard unit for this opposition is the ohm, symbolized by the Greek letter omega (Ω). This comes from Ohm’s law, which relates voltage, current, and resistance: V = I × R. A simple way to understand it is that if applying one volt across a device causes one ampere of current to flow, that device has a resistance of one ohm. The others you might encounter—henries for inductance, farads for capacitance, and watts for power—describe different electrical properties, not resistance. So resistance is measured in ohms.

Resistance is the measure of how much a component opposes the flow of electric current. The standard unit for this opposition is the ohm, symbolized by the Greek letter omega (Ω). This comes from Ohm’s law, which relates voltage, current, and resistance: V = I × R. A simple way to understand it is that if applying one volt across a device causes one ampere of current to flow, that device has a resistance of one ohm. The others you might encounter—henries for inductance, farads for capacitance, and watts for power—describe different electrical properties, not resistance. So resistance is measured in ohms.

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