CBSE Class 7 Answered
(i) How does the convection current form?(ii) A hot utensil kept away from the flame cools down. How?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(i) When hot particles in a medium rise up and cold particles move down to take their place, convection currents are formed.
(ii) A hot utensil kept away from the flame cools down as it transfers heat to the surroundings by radiation.
(ii) A hot utensil kept away from the flame cools down as it transfers heat to the surroundings by radiation.
Answered by | 04 Jun, 2014, 03:23: PM
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