No, the ohm meter is not an SI unit.
The ohm (Ω) itself is the SI unit of electrical resistance, named after the German physicist Georg Simon Ohm. The ohm meter (Ω·m) is a derived unit used to measure the electrical resistivity of a material, which is a property that quantifies how strongly a material opposes the flow of electric current.
In summary:
- **Ohm (Ω):** SI unit of electrical resistance.
- **Ohm meter (Ω·m):** Derived unit used to measure electrical resistivity, not an SI base unit.
The SI base units are more fundamental, such as the meter (m) for length, kilogram (kg) for mass, and second (s) for time. Derived units like the ohm meter are combinations of these base units.