Saket and Ali, two friends, built a house for themselves. To expel hot air out of kitchen Saket fitted an exhaust fan on the window of his kitchen and Ali fitted a similar exhaust fan on the wall near the ceiling of his kitchen. a. Which of the exhaust fans will expel the hot air more effectively? Why? b. How does a ventilator work in circulating fresh air in the room?
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In the kitchen of 'B' ,warm air rises up and her exhaust fan is at standard height as comparison to, A. so, it will expel the hot air more effectively.
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