Science A, Combined (9-1) - Gateway Science Suite J250 9-1: P3: Electricity and magnetism Topical Past Paper Questions
OCR GCSE (9-1) Science A, Combined (9-1) - Gateway Science Suite J250 (9-1) past-paper questions on P3: Electricity and magnetism, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
This question is about transformers. (a) Complete the sentences to describe how transformers are used in the national grid. Put a $ \underline{\text{ring}} $ around each correct option. A step-up / step-down transformer increases current / potential difference at the power statio…
(a) The diagram shows a transformer. Calculate the potential difference across the secondary coil of the transformer. Use the Equation Sheet. Potential difference across the secondary coil = ___ V [2] (b) The manufacturer says, ‘The transformer is 98% efficient.’ Explain what thi…
A student does an experiment to measure the resistance of a coil of wire. The diagrams in Fig. 15.1 show the meters used in this experiment: Fig. 15.1 (a) Meter V measures potential difference. Complete the table to describe meter V. [1] (b) Draw a circuit diagram for the experim…
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