Question

Is it necessary that an object which is a good conductor of heat should be a good conductor of electricity also ? explain please

Answer 1

As a rule, a good conductor of electricity is also a good conductor of heat. So you have a long list of metals.Among nonmetals, mica is verygood conductor of heat, though it is very poor conductor for electricity. Among the best conductors, you have silver, gold, copper and Aluminium.

Answer 2

It's not necessary that an object which is a good conductor of heat should be a good conductor of electricity . For e.g. silver is a good conductor of heat but not of electricity