Which symbol denotes the unit of electrical resistance?

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Multiple Choice

Which symbol denotes the unit of electrical resistance?

Explanation:
Ω denotes the ohm, the unit of electrical resistance. Resistance measures how much a component opposes current flow; in Ohm’s law, it’s the ratio of voltage to current (R = V / I). The ohm is defined so that a one-volt potential difference driving a one-ampere current corresponds to one ohm. In circuits, higher resistance means less current for the same voltage. The other symbols represent different quantities: ampere for current, volt for voltage, and watt for power.

Ω denotes the ohm, the unit of electrical resistance. Resistance measures how much a component opposes current flow; in Ohm’s law, it’s the ratio of voltage to current (R = V / I). The ohm is defined so that a one-volt potential difference driving a one-ampere current corresponds to one ohm. In circuits, higher resistance means less current for the same voltage. The other symbols represent different quantities: ampere for current, volt for voltage, and watt for power.

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