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emadraouf:
In a fire alarm system, a thermistor T has a resistance of 2000Ω at room temperature. Its resistance decreases as the temperature increases. The alarm is triggered when the potential difference between X and Y reaches 4.5V. What is the resistance of the thermistor when the alarm is triggered?
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TETSXPREME:
Welcome To QuestionCove I think we are supposed to Divide in this I'm not sure
jhonyy9:
V potential difference (voltage) V = IR I = current R = resistance
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