Bimetal strips are used for...

Bimetal strips are used for

metal thermometer

opening or closing electrical circuits

thermomsats

All of the above

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When bimetallic strip is heated, the bress expands more than the steel the strip curves with the brass on the outside. If strip is cooled, it curves with the steel on outside and can be used in thermostat, as a switch or in metal thermometers.

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DC PANDEY-THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES-Check point 14.2

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