Stone is most definitely not a good thermal insulator. It changes its temperature quickly with the surrounding environment. In fact, stone is a thermal conductor and will pass heat or cold right to the adjacent materials.
Answer 1Copper [CU] is NOT A GOOD INSULATOR. On the contrary, it is a very excellent conductor of both electricity AND heat! Answer 2Glass, some kinds of rubber, most plastics, vinyl. Most materials are SOMEWHAT conductive and act differently at different temperatures. PURE glass is one of the best insulators. Answer 3If copper was to be a bad conductor..then copper vessels and cables wodn exist,,it s a very good conuctorof heat and electricity
karnataka 2nd sem Diploma in Engineering question papers
Mica has such poor electrical conductivity that it has often been used as an insulator. The resistivity of mica ranges from 1x10^12 to 2x10^14 Ω/cm depending on the type of mica. For reference, copper, a good conductor, has a resistivity of only 1.68×10^−8 Ω/m or 1.68x10^-10 Ω/cm. no, it is an insulator.
good
no.
Styrofoam is a very porous material; air from the closed pores has a bad thermal conductivity.
with so many other things out there to use as an insulator it would seem a very bad choice, but yes it would bea good insultor, electricity will not flow through it.
No, wool is actually a good insulator because it has low thermal conductivity. This means it traps heat close to the body, making it a good choice for cold weather clothing.
A good insulator is good at stopping heat escaping, whereas a bad insulator is not very good at trapping heat and lets it out.
Ceramic is a good insulator and does not easily absorb heat. It has low thermal conductivity, meaning it does not allow heat to pass through easily. However, its surface can still become hot when exposed to heat sources.
semi conductor
No, thermal energy is just heat. it is good.... like lemons
wool holds lot of air.air being bad conductor of heat make the wool a good conductor of heat.
Paper is a bad insulator because paper can burn very easily.
Aluminum is a poor insulator because it is a good conductor of heat and electricity. Due to its high thermal conductivity, aluminum allows heat to easily flow through it, making it ineffective at preventing heat transfer. This property makes it unsuitable for applications where insulation is needed to retain heat or prevent heat loss.
There is no "material" that does not allow a powerful enough current to conduct through it. However, a vacuum (which contains absolutely nothing, and is not technically a material) will never conduct a current, no matter the power.
insulator bcz its a bad conductor.....