Unit of electrical resistance is named what?

Unit of electrical resistance is named what?

• A. Volt
• B. Ohm
• C. Ampere
• D. Watt

Answer: (B)

Resistance tells you how much a component resists the flow of electric charges. The unit named for this quantity is the ohm. By definition, one ohm is the resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, would produce a current of one ampere, so R = V/I. In practical terms, if you apply one volt and observe one ampere, you have one ohm of resistance. Volt measures potential difference, ampere is current, and watt is power, which is why the ohm correctly describes resistance.

Resistance tells you how much a component resists the flow of electric charges. The unit named for this quantity is the ohm. By definition, one ohm is the resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, would produce a current of one ampere, so R = V/I. In practical terms, if you apply one volt and observe one ampere, you have one ohm of resistance. Volt measures potential difference, ampere is current, and watt is power, which is why the ohm correctly describes resistance.