The symbol “Ω” is the Greek letter omega, and it is commonly used to represent ohms, which is the unit of electrical resistance in the International System of Units (SI).

In the context of electrical engineering and physics:

Ohms (Ω): Ohms are a unit of electrical resistance, representing how much a material or component resists the flow of electrical current. The higher the resistance, the more difficult it is for current to flow, and the lower the resistance, the easier it is for current to flow. For example, a resistor with a resistance of 100Ω (read as “100 ohms”) restricts the flow of current more than a resistor with a resistance of 10Ω.

Ohms play a crucial role in understanding and designing electrical circuits, as they help determine the behavior of components and the flow of current. They are fundamental to concepts such as Ohm’s Law (V = IR), where “V” is voltage, “I” is current, and “R” is resistance, and are widely used in electronics and electrical engineering.