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What is the device that consists of two unlike metal strips that are attached and have different rate of expamsion and contraction?
Wiki User
∙ 11y ago
This is called a 'Bi-metal' strip.
The different rates of expansion cause it to bend, when the temperature is altered.
Many uses as a rudimentary temperature sensor.
Used electrically, where the movement operates a switch and mechanically where it will operate a trip lever.
Still used, in toasters, electric kettles and room thermostats, but increasingly replaced by electronic sensors, such as thermistors.
Wiki User
∙ 11y ago
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