Question

क्लास सेवंथ एनसीईआरटी चैप्टर 6 फाइबर टो फैब्रिक साइंस के कौन से पार्ट में होगा chemestry, phichis, beo​

Answer 1

Answer:

Thermostat, device to detect temperature changes for the purpose of maintaining the temperature of an enclosed area essentially constant. In a system including relays, valves, switches, etc., the thermostat generates signals, usually electrical, when the temperature exceeds or falls below the desired value.