Conductance

"a measure of a material's ability to conduct the flow of electric current ."

Unit & Abbreviation:

G: 1 mho = 1 / ohm = 1 siemens

Specific Conductance | Conductivity:

Conductance of unit length and unit cross-sectional area of a material.

Unit & Abbreviation:

σ (sigma) : mho/meter

Questions:

  1. A current of 0.96 A flows through a copper wire 0.49 mm in diameter when it is connected to a potential difference of 15 V. How long is the wire? Give answer in km.

  2. You apply a potential difference of 4.50 V between the ends of a wire that is 2.50 m in length and 0.654 mm in radius. The resulting current through the wire is 17.6 A. What is the conductivity of the wire?

Related Topics:

  1. Conductance.

  2. Conductors.

  3. Electrical Cables.