plumiPotential dividers: Edexcel International A Level Physics questions
Every Edexcel International A Level Physics exam question on Potential dividers (specification points 74–76), 2019–2025, with its mark scheme and examiner’s report.
Paper
All papers
Exam
All years
Calculations
Q16(c)
The whole paper ↗Q19(e)
The whole paper ↗Q16(a)
The whole paper ↗Q16(b)
The whole paper ↗- Your answer
Q13(b)(ii)
The whole paper ↗Q14(a)
The whole paper ↗- Your answer
- Your answer
Q12(a)
The whole paper ↗Q12(b)(i)
The whole paper ↗- Your answer
- Your answer
Q1(c)(ii)
The whole paper ↗Q14(a)
The whole paper ↗Q14(b)
The whole paper ↗Q13(a)
The whole paper ↗Q13(b)
The whole paper ↗
All 25 questions on Potential dividers, as a list
- June 2025, AS Unit 2, Q16(c) (2 marks): The student makes the following prediction. If I switch the positions of the 100 Ω resistor and the 200 Ω resistor, then the reading on the voltmeter will incre
- October 2024, AS Unit 2, Q19(e) (4 marks): The electrical circuit shown includes four resistors, A, B, C and D, which apply a p.d. between adjacent metal plates. metal plate photocathode vacuum A B C D E
- June 2024, AS Unit 2, Q16(a) (2 marks): The light intensity incident on the LDR decreases. Explain what happens to the potential difference across the fixed resistor. (2)
- June 2024, AS Unit 2, Q16(b) (3 marks): The security lamp switches on when the potential difference across the fixed resistor is 0.62 V. When the lamp switches on, the ratio of the resistance of the L
- January 2024, AS Unit 2, Q6 (1 mark): A uniform wire is attached to a metre rule. The wire is connected in a circuit as shown. d V metre rule The distance d between the connections to the voltmeter
- October 2023, AS Unit 2, Q13(b)(ii) (1 mark): The connection to the right-hand terminal of the voltmeter was moved to a distance of 3.0 cm from the left-hand side of the resistivity paper. Determine the rea
- October 2023, AS Unit 2, Q14(a) (6 marks): Deduce whether this circuit would switch on the heater when the temperature falls below 10 °C. You should include a calculation of the p.d. across the thermisto
- June 2023, AS Unit 2, Q4 (1 mark): The current in a length of uniform wire is constant. Which of the following graphs shows how the potential difference (p.d.) across the wire varies with the len
- June 2023, AS Unit 2, Q14 (6 marks): *14 The circuit shown contains a fixed resistor and a light dependent resistor (LDR). Explain why the power dissipated by the whole circuit changes as the inten
- January 2023, AS Unit 2, Q6 (1 mark): A light dependent resistor is connected in a circuit, as shown. A V The intensity of light incident on the light dependent resistor decreases. Which row of the
- June 2022, AS Unit 2, Q8 (1 mark): A battery is connected to identical, uniform, nichrome wires, PQ and RS. A voltmeter is connected to the wires as shown. The battery has negligible internal res
- June 2022, AS Unit 2, Q12(a) (4 marks): Determine the milliammeter reading when the temperature of the thermistor is 54 °C. (4) Milliammeter reading = mA
- June 2022, AS Unit 2, Q12(b)(i) (2 marks): Explain how decreasing the temperature of the thermistor affects the voltmeter reading. Do not include calculations in your answer. (2)
- January 2022, AS Unit 2, Q10 (1 mark): A light dependent resistor (LDR) and a fixed resistor are connected in a circuit, as shown. The intensity of the light incident on the LDR is increased. Which o
- October 2021, AS Unit 2, Q8 (1 mark): A current-carrying wire AB of length x and uniform diameter is connected in a circuit as shown. x A B S y V R1 R2 The slider S is moved along the wire until the
- October 2021, AS Unit 3, Q1(c)(ii) (3 marks): Calculate the resistance of the thermistor at a temperature of 0 °C. (3) Resistance =
- June 2021, AS Unit 2, Q14(a) (4 marks): The reading on the voltmeter is 3.42 V. Determine the temperature of the thermistor. (4) Temperature =
- June 2021, AS Unit 2, Q14(b) (4 marks): The student suggests that if the e.m.f. of the battery is doubled, the reading on the voltmeter will double. Assess whether the student’s suggestion is correct.
- January 2021, AS Unit 2, Q13(a) (2 marks): Calculate the resistance of the LDR when the lights were off. (2) Resistance of LDR =
- January 2021, AS Unit 2, Q13(b) (2 marks): When the lights were switched back on, the student discovered that it was impossible to calculate the resistance of the LDR using this circuit. The teacher said
- October 2020, AS Unit 2, Q10 (1 mark): The circuit shows a potential divider, including a battery of negligible internal resistance and a light dependent resistor (LDR). The potential difference (p.d
- October 2020, AS Unit 2, Q12(a) (2 marks): Calculate a value for the voltmeter reading. (2) Voltmeter reading =
- October 2020, AS Unit 2, Q12(b) (4 marks): The student sets up the circuit and observes that the reading on the voltmeter is lower than the value calculated in (a). Explain two reasons for the lower volt
- January 2020, AS Unit 2, Q7 (1 mark): A negative temperature coefficient thermistor is connected in a circuit as shown. A V1 V2 The temperature of the thermistor is increased. Which row of the table
- June 2019, AS Unit 2, Q15(c)(i) (3 marks): In normal daylight, this particular type of LDR has a resistance of 670 ȍ. Calculate the power dissipated in the fixed resistor in normal daylight. resistance o
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