The unit Ohm is denoted by which symbol?

The unit Ohm is denoted by which symbol?

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

Answer: (A)

Electrical resistance is represented by the symbol Ω, which is the Greek letter Omega. This symbol is used to denote the ohm, the unit of resistance. It’s defined as the resistance between two points where, with a constant temperature, a potential difference of 1 volt would drive a current of 1 ampere. The other units shown correspond to different quantities: amperes for current (A), volts for voltage (V), and watts for power (W). So the symbol for the ohm is Ω, commonly spoken as “Omega.”

Electrical resistance is represented by the symbol Ω, which is the Greek letter Omega. This symbol is used to denote the ohm, the unit of resistance. It’s defined as the resistance between two points where, with a constant temperature, a potential difference of 1 volt would drive a current of 1 ampere. The other units shown correspond to different quantities: amperes for current (A), volts for voltage (V), and watts for power (W). So the symbol for the ohm is Ω, commonly spoken as “Omega.”