Question

The process of covering a good conductor with a poor conductor is called?

Answer 1

Answer:

Lagging

Explanation:

Loss of heat by conduction through the walls of an oven is reduced by constructing it with double walls. Material of low thermal conductivity used for the purpose of preventing heat loss is called lagging.

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Answer 2

Answer:  

Lagging  

Explanation:  

Loss of heat by conduction through the walls of an oven is reduced by constructing it with double walls. Material of low thermal conductivity used for the purpose of preventing heat loss is called lagging