Question

Name any one electrical device in your home in which thermostat is used. Explain the

working principle of thermostat used in heating devices with the help of suitable diagram.

Can a bimetallic strip made of brass and silver be used in thermostat? Give resons for

your answer.

Answer 1

Thermostat works on the principle of thermal expansion of solid materials. A traditional thermostat has two pieces of different metals bolted together to form what's called a bimetallic strip (or bimetal strip). The strip works as a bridge in an electrical circuit connected to your heating system.