In which direction does the Heat flow when you hold a hot cup of tea in your hand?
Answers
Answer:
Conduction, Convection and radiation are three modes of transfer of heat. Conduction can take place in any medium. However, a material medium is necessary. Convection can take place only through liquids and gases. Radiation is independent of the material. when we pick up a cup of hot coffee, heat is transferred from the cup to our hands. Since cup is solid there is no question of convection. But conduction is definitely possible.
Answer:
The hot bulb also cannot transfer its heat to our hand by convection because the convection currents of air always carry heat in the upward direction (but our hand is held below the bulb). The hot electric bulb transfers its heat to our hand held below it by the process called radiation.
Explanation:
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