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University Physics with Modern Physics

Hugh D. Young, Roger A. Freedman

Physics

14th edition Edition · 1596 pages

ISBN: 9780321973610

Chapter 4: Q24DQ (page 841)

The text states that good thermal conductors are also good electrical conductors. If so, why don’t the cords used to connect toasters, irons, and similar heat-producing appliances get hot by conduction of heat from the heating element?

Short Answer

Expert verified

The cords don’t get hot because of the low resistance.

Step by step solution

01

Definition of resistance.

Resistance inside a material refers to the opposition experienced by the flowing electrons in a conductor.

02

Step 2:Why don’t the cords get hot.

The resistance on the cords is very low; therefore, less power gets dissipated in it, and less heat is produced.

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