Link to our latest notes and resources: https://drive.google.com/drive/u/2/folders/15Ld6KabsL9x9X-t4GefBgSzXFDckJFa6 4.5 Electromagnetic effects continued 4.5.4 Forces on a current-carrying conductor 1 Describe an experiment to show that a force acts on a current-carrying conductor in a magnetic field, including the effect of reversing: (a) the current (b) the direction of the field 2 Recall and use the relative directions of force, magnetic field and current 3 Describe the magnetic field patterns between currents in parallel conductors and relate these to the forces on the conductors (excluding the Earth’s field) 4.5.5 The d.c. motor 1 Know that a current-carrying coil in a magnetic field may experience a turning effect and that the turning effect is increased by increasing: (a) the number of turns on the coil (b) the current (c) the strength of the magnetic field 2 Describe the operation of an electric motor, including the action of a split-ring commutator and brushes 4.5.6 The tra

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O Levels Electromagnetic Induction

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