Question

Which of the following is the bad conductor of heat?
A. Wood
B. Rubber
C. Water
D. Copper wire

Answer 1

Hint: Such type of question requires a brief explanation about the conductors, as explananing about each of the following options provided can help us to find our required answer and choose the among good and bad conductors.

Complete Step-by-Step solution:
Materials which direct heat and warmth electricity are known as good conductors. Others are known as bad conductors. A decent conductor normally has charged particles like electrons or particles in them. Copper being a metal has free electrons accessible for conduction Wood elastic and water are non-metals and don't have free electrons for conduction. So they are bad conductors of electricity and heat.
Hence, by briefly studying the above information about the conductor we can conclude that the answer would be option B & C as they are bad conductors of heat and electricity.

Note: The state of the atoms influences the rate of energy transfer. Low energy atoms as solids transfer energy the best. High energy atoms as gases are the worst energy transferees. Liquids in between. The actual heat flow rate is limited by the worst component in the contact. This can be the energetic state of either atom or their contact zone or their electron density.