SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It senses Light. The brighter the light the lower the resistance.
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It senses Temperature. The hotter the temperature the lower the resistance.
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Either A or B
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None of the above
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Detailed explanation-1: -With an NTC thermistor, when the temperature increases, resistance decreases. Conversely, when temperature decreases, resistance increases. This type of thermistor is used the most.
Detailed explanation-2: -Thermistors change resistance with temperature changes; they are temperature-dependent resistors. They’re perfectly suited to scenarios where one specific temperature needs to be maintained, they’re sensitive to small changes in temperature. They can measure liquid, gas, or solids, depending on the type of thermistor.
Detailed explanation-3: -Thermistors have a negative temperature coefficient of resistance i.e. the resistance decreases with an increase in the temperature. Thermistors can measure the temperature in the range of-100°C to 300°C.
Detailed explanation-4: -A thermistor is a resistance thermometer, or a resistor whose resistance is dependent on temperature. There are two types of thermistors: Negative Temperature Coefficient (NTC) and Positive Temperature Coefficient (PTC). With an NTC thermistor, when the temperature increases, resistance decreases.