(i) How does the convection current form?

(ii) A hot utensil kept away from the flame cools down. How?

Asked by Topperlearning User | 4th 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.

Answered by  | 4th Jun, 2014, 03:23: PM