O-LevelPhysicsElectricityOct/Nov 2025Paper 3 Q110 Marks
In this experiment you will investigate a light dependent resistor (LDR). You are provided with: • a power supply • a switch • a voltmeter with two leads that may be connected between different points in the circuit • a light dependent resistor (LDR) • a 560 Ω resistor • a piece of card. The supervisor has constructed a series circuit consisting of the power supply, the LDR, the resistor and the switch. The circuit has three points labelled P, Q and S.
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