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Question
Write a note on thermostat.
Solution
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A thermostat is a device which maintains the temperature of a place or an object constant.
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The word thermostat is derived from two Greek words, ‘thermo’ meaning heat and ‘static’ meaning staying the same.
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Thermostats are used in any device or system that gets heated or cools down – to a preset temperature. It turns an appliance or a circuit on or off when a particular temperature is reached.
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Devices that use a thermostat include a building heater, a central heater in a room, an air conditioner, a water heater, as well as kitchen equipment including an oven and refrigerators.
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Sometimes, a thermostat functions both as the sensor and the controller of a thermal 6 system.
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