Question

Solution for the Given Scientifical Question
On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will his room be warmer or cooler than the neighbouring rooms. Assume all the doors and windows are kept closed?

Answer 1

Hi,

we found some more temperature of our room than the other room ,
actually , fan never cool ur room ,hope u think ,when i run the fan then i feel some coolness ,

no, u feel cool because ur body water,when air touch ur body then water is evaporated then the water feel us cool.

but u ran a fan in ur room then their is no water , but also fan become hot and hot due to current flow ,and mechanical work, so it increase temperature of ur room.