The SI units of resistivity is

Explanation

To find the SI unit of resistivity, we can start from the relationship between resistance, resistivity, length, and area. The formula for resistance (R) is given by:

\[ R = \frac{\rho \cdot L}{A} \]

where:
- \( R \) is the resistance,
- \( \rho \) is the resistivity,
- \( L \) is the length of the conductor,
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