Electrical Resistance Unit: Identifying Ohm
Electrical resistance is a measure of how much an object opposes the flow of electric current. Understanding its unit is crucial in physics and electrical engineering.
Analyzing the Options
- Watt (W): This is the standard unit of power in the International System of Units (SI). Power is the rate at which energy is transferred or used.
- Coulomb (C): This is the SI unit of electric charge. It represents the quantity of electricity transferred by a current of one ampere in one second.
- Newton (N): This is the SI unit of force. It is defined as the force needed to accelerate a mass of one kilogram at a rate of one meter per second squared.
- Ohm (Ω): This is the SI unit of electrical resistance. It is named after Georg Simon Ohm. One ohm is defined as the resistance between two points of a conductor when a constant potential difference of one volt is applied to the conductor and a steady current of one ampere is produced. The symbol for Ohm is the Greek letter Omega (Ω).
Conclusion
Based on the definitions, the Ohm (Ω) is the correct unit for measuring electrical resistance.
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