The conductance of any material is defined as its ability to allow the charge. It is actually a reciprocal of resistance and can be mathematically expressed in the equation as:
G = conductance
R = resistance
Unit of conductance is Siemens and is usually represented by S. Sometimes upside down ohms (℧ or mho) is also used.
Example: Determine the conductance of 100 Ω resistor.
Solution: G = 1/100 Ω = 0.01 S
Example: Find the conductance of 1 kΩ resistance.
Solution: G = 1/1 kΩ = 1 mS
Example: The resistance of a certain material is halved, what happens to conductance.