What is the unit of electrical resistance?

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Multiple Choice

What is the unit of electrical resistance?

Explanation:
Resistance is how strongly a component resists the flow of electric current. From Ohm’s law, R = V / I, so the unit of resistance is volt per ampere, defined as one ohm. That means when you have a potential difference of one volt across a component and it draws a current of one ampere, the component has a resistance of one ohm. The volt measures electrical potential difference, the ampere measures current, and the watt measures power—none of these describe resistance. The symbol for the ohm is the Greek letter omega (Ω).

Resistance is how strongly a component resists the flow of electric current. From Ohm’s law, R = V / I, so the unit of resistance is volt per ampere, defined as one ohm. That means when you have a potential difference of one volt across a component and it draws a current of one ampere, the component has a resistance of one ohm. The volt measures electrical potential difference, the ampere measures current, and the watt measures power—none of these describe resistance. The symbol for the ohm is the Greek letter omega (Ω).

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