Physics A H156: Electrical circuits Topical Past Paper Questions
OCR AS Physics A (H156) past-paper questions on Electrical circuits, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A battery of electromotive force (e.m.f.) $ \varepsilon $ and internal resistance r is connected to five identical wire wound resistors in a circuit. Each resistor between points P and Q has a resistance of $ 300\Omega $. Two of the resistors are labelled X and Y as shown. The ta…
A switch, resistor of resistance R and a component Z are connected to a battery of electromotive force (e.m.f.) E and internal resistance r. An ammeter and voltmeter are also connected to the circuit as shown in Fig. 6.1. Fig. 6.1 Fig. 6.2 shows the current I and potential differ…
(a) A light-emitting diode (LED) emits visible light when the potential difference across it exceeds a threshold voltage. Describe, with the help of a circuit diagram, how you could carry out an experiment to accurately determine the threshold voltage of an LED in a brightly-lit…
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