How Does Temperature Regulation In An Electric Iron Work?

The video explains the automatic on-off function in electric irons, which is controlled by a thermostat. It differentiates between thermostats and thermometers, highlighting that thermostats regulate temperature while thermometers measure it. The video details how irons use heat and pressure to remove wrinkles, and how thermostats prevent overheating by using a bimetallic strip to control the electric current. This mechanism ensures safety and energy efficiency.

What is the primary role of a thermostat in an electric iron?

• To increase the temperature rapidly

• To regulate the temperature and prevent overheating

• To measure the temperature of the iron

• To decrease the power consumption

Which of the following devices also use thermostats for temperature regulation?

• Air conditioners

• Electric fans

• Televisions

• Refrigerators

How does an electric iron remove wrinkles from clothes?

• By using a cooling mechanism

• By vibrating the fabric

• By applying heat and pressure

• By using steam

What happens when the bimetallic strip in a thermostat bends?

• The iron cools down immediately

• The iron heats up more

• The circuit opens and stops the current

• The circuit remains closed

Why does the iron seem to turn on and off repeatedly during use?

• To save electricity

• Because of the cyclical switching of the thermostat

• To ensure even heating

• Due to a faulty power supply