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Magnetic fields and induction

Eduqas A420QS — matched to your course.

Forces on currents and charges, magnetic flux, Faraday's law, Lenz's law and electromagnetic induction.

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Force on a current-carrying wire

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Subtopics and study areas

  • Investigate how magnetic force depends on flux density, current and length of wire in the field.

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Magnetic fields and induction

Tailored to Eduqas A420QS.

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Subtopics and study areas

  • Calculate magnetic forces on current-carrying conductors and moving charges.
  • Use magnetic flux and flux linkage to analyse electromagnetic induction.
  • Apply Faraday's and Lenz's laws to generators, coils and changing-field situations.
  • Calculate force on a current-carrying conductor in a magnetic field.
  • Use magnetic flux and flux linkage.
  • Apply Faraday's and Lenz's laws to electromagnetic induction.

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Magnetic flux density using a Hall probe

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Subtopics and study areas

  • Use a Hall probe to map and measure magnetic flux density.