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Question
Explain an example where heatis transferred by all the three mean that is conduction,convection and radiation.
Explain an example where heatis transferred by all the three mean that is conduction,convection and radiation.
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Solution
A hot cup of tea!
- hot tea conducts heat to cup material via conduction and cup outer surface heats due to conduction through cup thickness.
- There is natural convection of heat through liquid tea due to density difference.
- There is radiation of heat in the form of electromagnetic waves (IR in this case) to surroundings.
A hot cup of tea!
- hot tea conducts heat to cup material via conduction and cup outer surface heats due to conduction through cup thickness.
- There is natural convection of heat through liquid tea due to density difference.
- There is radiation of heat in the form of electromagnetic waves (IR in this case) to surroundings.
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