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Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 33

9702Practical circuits

The diagram shows an electrical circuit containing a light-dependent resistor (LDR). What is the circuit diagram for this circuit?

  1. ACircuit with ammeter in series with parallel combination of fixed resistor and LDR (LDR symbol with arrows)
  2. BCircuit with ammeter in series with parallel combination of fixed resistor and thermistor
  3. CCircuit with ammeter in series with parallel combination of fixed resistor and thermistor (ammeter in different position)
  4. DCircuit with ammeter in series with parallel combination of fixed resistor and LDR (ammeter in different position)

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Correct answer: A. Circuit with ammeter in series with parallel combination of fixed resistor and LDR (LDR symbol with arrows)

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