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What is the SI unit of resistance?

Answer and explanation

Correct answer: ओम (Ω)

The SI unit of resistance is the ohm (Ω). According to Ohm’s law, \(R=\frac{V}{I}\); a resistance of \(1\,\Omega\) allows a current of \(1\,\text{A}\) when the potential difference is \(1\,\text{V}\). Volt is the unit of potential difference, while ampere is the unit of current. Exam tip: remember the symbol Ω for resistance.

Related tags

Electrical ResistanceSi UnitOhmOhms LawElectricityClass 10 ScienceResistanceScience

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