Physics (AS & A Level) · Oct / Nov 2023 · Paper 51 · Question 1

Two coils, C and D, are placed with their axes on a straight line, as shown in Fig. 1.1. R coil D coil C Fig. 1.1 A resistor of resistance R is connected in series with coil C. A changing magnetic flux of frequency f in coil C causes an electromotive force (e.m.f.) E to be induced across the terminals of coil D. It is suggested that E is related to f by the relationship E = pf qV R where V is the potential difference across the resistor and coil C, and p and q are constants. Plan a laboratory experiment to test the relationship between E and f. Draw a diagram showing the arrangement of your equipment. Explain how the results could be used to determine values for p and q. In your plan you should include: ● the procedure to be followed ● the measurements to be taken ● the control of variables ● the analysis of the data ● any safety precautions to be taken. 3 Diagram 4 [15]

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