What is the unit of resistance?

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Multiple Choice

What is the unit of resistance?

Resistance is measured in the ohm, the unit that expresses how strongly a component resists the flow of electric current. When you look at circuits, resistance is the ratio of voltage to current: R = V / I. Since voltage is measured in volts and current in amperes, the derived unit is volts per ampere, which is defined as one ohm (Ω). So, if you have one volt across a device that draws one ampere, that device has a resistance of one ohm. Other quantities like watt, amp, and volt describe power, current, and voltage respectively, not resistance.

Resistance is measured in the ohm, the unit that expresses how strongly a component resists the flow of electric current. When you look at circuits, resistance is the ratio of voltage to current: R = V / I. Since voltage is measured in volts and current in amperes, the derived unit is volts per ampere, which is defined as one ohm (Ω). So, if you have one volt across a device that draws one ampere, that device has a resistance of one ohm. Other quantities like watt, amp, and volt describe power, current, and voltage respectively, not resistance.

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