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OCR A A-Level Physics Paper 2 Practicals Questions And Answers 2025/2026
OCR A A-Level Physics Paper 2 Practicals
OCR A A-Level Physics Paper 2 Practicals
(9) Investigating Ohm's Law - CORRECT ANSWER-- Variable resistor, connected to ammeter, resist, and voltmeter in parallel with the resistor - Vary the resistance of the variable resistor, which changes the p.d. of the circuit - Measure current and p.d. - Plot a V-I graph, and should be a straight line through the origin if Ohm's law is followed
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