Ratio of Diameter of Wires#

Part 1#

Find the ratio of the diameter of aluminum to copper wire, if they have the same resistance per unit length (as they might in household wiring).

Answer Section#

  • \(\sqrt{\rho_\mathrm{Cu} / \rho_\mathrm{Al}}\)

  • \(\sqrt{\rho_\mathrm{Al} / \rho_\mathrm{Cu}}\)

  • \(\rho_\mathrm{Cu} / \rho_\mathrm{Al}\)

  • \(\rho_\mathrm{Al} / \rho_\mathrm{Cu}\)

  • \(\rho_\mathrm{Cu} * \rho_\mathrm{Al}\)

  • \((\rho_\mathrm{Cu} / \rho_\mathrm{Al})^2\)


Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.