Answer to Question #223306 in Atomic and Nuclear Physics for Gady

Question

Which of the following statements about heat transfer is NOT true?

A. Radiation transmits heat through air with the speed of light in air

B. In a fluid, heat is transmitted upwards mainly by mass movement of fluid molecules

C. A poor conductor has a low value of thermal conductivity

D. All good thermal conductors are not necessarily good electrical conductors

Answer 1

D. All good thermal conductors are not necessarily good electrical conductors is not true because all good thermal conductors are also good conductors of electricity because they have free electrons.