shows current–potential difference (p.d.) graphs for a resistor, a thermistor and a filament lamp. p.d. / V 0.2 0.4 0.6 current / A 0.8 1.0 filament lamp filament lamp resistor resistor thermistor thermistor The resistor, the thermistor and the filament lamp are connected in series with a power supply. Draw a circuit diagram for this circuit. Add a voltmeter to your circuit diagram in in a correct position to measure the p.d. across the resistor. Using the graph in , determine the p.d. across the terminals of the power supply when the p.d. across the resistor is 6.0 V. p.d. across terminals of power supply = Describe a practical use for a thermistor. 0625_w21_qp_43 THEORY 2021 Paper 4, Variant 3 View
An alternating (a.c.) supply is connected to a diode and a resistor in series. a.c. supply a.c. supply V t V Which graph shows how the potential difference V across the resistor varies with time t ? 0625_w23_qp_21 MCQ 2023 Paper 2, Variant 1 View