Physics · IGCSE · Cambridge · Cambridge IGCSE (9–1) Physics 0972 (Extended) (2026–2028) · Specification point · 4.5.3 · Electricity and magnetism · Electromagnetic effects
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4.5.3 Magnetic effect of a current
| Core | Supplement |
|---|---|
1 Describe the pattern and direction of the magnetic field due to currents in straight wires and in solenoids 2 Describe an experiment to identify the pattern of the magnetic field (including direction) due to currents in straight wires and in solenoids 3 Describe how the magnetic effect of a current is used in relays and loudspeakers and give examples of their application | 4 State the qualitative variation of the strength of the magnetic field around straight wires and solenoids 5 Describe the effect on the magnetic field around straight wires and solenoids of changing the magnitude and direction of the current |