Cooling coils in refrigerators are made of _____________ to conduct away the heat.

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Solution

Cooling coils in refrigerators are copper, as copper is a very good conductor of electricity.
The other reason for using copper is that it is a very good conductor of heat.
Hence, cooling coils in refrigerators are made of copper to conduct away the heat.

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Identify the mode of heat in the following:-(Radiation, Convection, Conduction)

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________ is used as a cooling agent in refrigerators.

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