which of following instrument does not work on the heating effects of electric currents a. TOASTER b. iron c. heater d. fan
Answers
Answered by
1
Option (d) Fan does not work on the heating effects of electric current
Explanation:
- An electric fan converts electrical energy into mechanical energy by means of magnetic fields and the converted mechanical energy is utilized as the rotary motion of fan blades.
- We know that air naturally arranges itself in layers.
- The lighter, warm air rises up while the cool air, which is heavy, sinks down.
- The rotation mechanism of the ceiling fan is built in a way so as to attract the warm air upwards.
- As the hot air rises up, the fan blades slice this air and push it down.
- This is a continuous process that causes the air in the room to circulate in the entire room.
- Therefore, a ceiling fan only moves the air around.
Similar questions