The bimetallic strips that constitute some thermostats must differ in:
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Solution : Thermost is used in electric apparatus like refrigerator, iron etc. For automatic cut off. Therefore, for metallic strips to bend on heating their coefficient of linear expansion should be different
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Thermost is used in electric apparatus like refrigerator, iron etc. For automatic cut off. Therefore, for metallic strips to bend on heating their coefficient of linear expansion should be different.
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