Physics 9702 · AS & A Level · Concept of a magnetic field

Concept of a magnetic field — practice question

(main)[4]

Explain the role of the non-uniform magnetic field that is superimposed on a large uniform magnetic field in diagnosis using nuclear magnetic resonance imaging (NMRI).

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This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “radiofrequency pulses are emitted by the nuclei” …

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