Electromagnetism Recap

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Across
  1. 2. – Unit of charge per second flowing from positive to negative
  2. 4. – Type of current that changes direction regularly
  3. 5. – Iron part of a transformer that concentrates magnetic fields
  4. 6. – Work done per charge flowing around a circuit
  5. 9. – Split ring used in DC motors to reverse current
  6. 10. – How well a device transfers energy usefully
  7. 12. – Input coil in a transformer
  8. 13. – Hand used to predict the direction of force in a motor
  9. 14. – Potential difference produced when a wire cuts magnetic field lines
  10. 17. – Rate of flow of electric charge through a wire
  11. 18. – Output coil in a transformer
  12. 19. – Device that converts current into kinetic energy
Down
  1. 1. – Device that changes the voltage of AC electricity
  2. 3. – Region around a magnet where a force is experienced
  3. 7. – Device that converts kinetic energy into electrical current
  4. 8. – Push or pull on a current-carrying wire in a magnetic field
  5. 11. – Layers used in transformer cores to reduce energy loss
  6. 15. – Current that flows in one direction only
  7. 16. – Looped wire used in motors and generators
  8. 18. – Used in AC generators to maintain contact with the coil