'Ohm-metre' is unit of :
- AResistance
- BConductance
- CResistivity
- DCharge
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (c) Resistivity
Explanation
The ohm-metre (Ω·m) is the unit of resistivity (ρ), the property of a material that tells how strongly it opposes current. From ρ = RA/l, the unit is ohm × square metre ÷ metre = ohm-metre.
Resistance is measured in ohms, conductance in siemens and charge in coulombs.