What are the units of conductivity σ, resistivity ρ, resistance R, and current density J? In gold at room temperature, the mobility of mobile electrons is about 4.3 × 10−3 (m/s)/(V/m), and there are...

What are the units of conductivity σ, resistivity ρ, resistance R, and current density J?

In gold at room temperature, the mobility of mobile electrons is about 4.3 × 10−3 (m/s)/(V/m), and there are about 5.9 ×

1028 mobile electrons per cubic meter. Calculate the conductivity of gold, including correct units.