Question

is it necessary that the materials who are good conductors of electricity would also be good conductor of heat like GRAPHITE ?

Answer 1

help me please

Answer 2

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Answer 3

Is is not necessary.

Answer 4

no itz not necessary

Answer 5

no, In fact it would hinder the flow of electricity if it was a good conductor of heat.

Answer 6

Yes. All electrical conductors are heat conductors, because the free electrons that conduct electricity will also conduct heat. However, the converse is not true: good thermal conductors may or may not be good electrical conductors. Metals generally conduct both heat and electricity. However, diamond is an example of a material that conducts heat well but electricity poorly.

Answer 7

to conduct electricity the valence electrons need to be excited to a state where they are in the conduction band, some materials are already like this (eg metals) some need excitation, and some materials are unable to conduct electricity because their electrons are in low stable oribitals.