Explain why it is desirable to install an air conditioner near the ceiling of a...
PHYSICS
WAEC 2012
Explain why it is desirable to install an air conditioner near the ceiling of a room and not close to the floor.
Explanation
Air molecules near the ceiling get cooled, become denser and sink while warmer air moleculus below being lighter rise to the top, get cooled, become denser and sink once more, thereby sets up conventional current.
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