An electric fan is switched on in a closed room. The air in the room is

Question

An electric fan is switched on in a closed room. The air in the room is (A) Cooled (B) Heated (C) Maintains its temperature (D) Heat or cooled depending on the atmospheric pressure

Tardigrade Admin · Accepted Answer

Rotating fan in closed room increases the kinetic energy of air molecules, which on subsequent collision produces heat, hence temperature of room increases.

Q. An electric fan is switched on in a closed room. The air in the room is

Cooled

Heated

Maintains its temperature

Heat or cooled depending on the atmospheric pressure

Rotating fan in closed room increases the kinetic energy of air molecules, which on subsequent collision produces heat, hence temperature of room increases.