Why should air coolers be kept higher up in the room, and not down like the heaters?
Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM
Cool air is denser so it moves down whereas warm air is lighter so rises up hence convection currents are formed that helps in circulating the cold air and keeps the room cool.
If the air cooler is not kept higher up, then the cool air will remain at the surface layer and warm air will remain at the top, hence no circulation of air will take place and room will remain warm.
Answered by | 4th Jun, 2014, 03:23: PM
- when a person places the hand over a warm fire heat transfer takes place by the process of
- what is land breeze?
- If air is a bad conductor of heat, why do we not feel warm without clothes?
- (i) What is difference between conduction and convection?(ii) It is hotter at the same distance over the top of a fire than it is on the side of it. Why?
- Why room heaters should be placed at the floor of the room?
- (i) Why do freezers in freeze are always at top?(ii) Why does hot air rise and cold air sink?
- Why does hot air rise and cold air sink?
- (i) How does the convection current form?(ii) A hot utensil kept away from the flame cools down. How?
- How do ocean currents form?
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number