Magnetism 0.0 / 5 ? PhysicsElectromagnetismGCSEOCR Created by: ahkasCreated on: 27-09-22 19:33 Induced A current or magnet that can be created by the use of magnetic fields 1 of 10 Alternating current Electric current that continually changes direction 2 of 10 Magnetic field A region where there is a force on magnetic materials or current-carrying wires 3 of 10 Efficiency Useful output energy transfer divided by the total energy input 4 of 10 Magnetic flux density The amount of magnetic flux in a given area 5 of 10 Motor Device that converts electrical energy to kinetic 6 of 10 Generator Device that creates electricity when a wire is moved so that it cuts magnetic field lines 7 of 10 Step-up transformer Device that increases an alternating potential difference from the primary to secondary coil 8 of 10 Induced magnet A material that is magnetic only when it is placed in the magnetic field of another magnet 9 of 10 Split-ring commutator Device in a d.c motor that allows the motor to spin without reversing direction 10 of 10
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