IGCSE A Level Physics Exam MCQs – Practice Test 4 (Chapter 12)
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MCQ 16: A component whose property changes when there is a change in any physical quantity of a device is:
MCQ 17: Benefits of negative feedback include:
MCQ 18: When temperature rises, resistance of negative temperature coefficient thermistor:
MCQ 19: If current of 20 mA is passing through op-amp and voltage drop across series resistor is 10 V then value of resistance is:
MCQ 20: Graph of resistance of thermistor to temperature is:
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