Not a typical current carrying conductor material?

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Multiple Choice

Not a typical current carrying conductor material?

Explanation:
Materials used to carry electrical current are chosen for high conductivity and low resistance so they stay cool under load. Steel isn’t in that group because its resistivity is much higher than copper or aluminum, so the same size conductor would carry less current and heat up more. Copper and aluminum are the standard choices for actual current-carrying conductors due to their excellent conductivity and workable properties, with copper-clad aluminum offering a balance of conductivity and weight. Note that steel often appears in cables as armor or a structural strength member, not as the conductor itself.

Materials used to carry electrical current are chosen for high conductivity and low resistance so they stay cool under load. Steel isn’t in that group because its resistivity is much higher than copper or aluminum, so the same size conductor would carry less current and heat up more. Copper and aluminum are the standard choices for actual current-carrying conductors due to their excellent conductivity and workable properties, with copper-clad aluminum offering a balance of conductivity and weight. Note that steel often appears in cables as armor or a structural strength member, not as the conductor itself.

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