Across
- 5. a soft metal core made into a magnet by the passage of electric current through a coil surrounding it
- 7. The rotating magnets cause the change in direction of electric flow.
- 8. a length of something wound in a joined sequence of concentric rings.
- 9. is an electrochemical device that converts electrical energy into mechanical energy.
- 11. or cause to turn or whirl round quickly.
Down
- 1. an electric current flowing in one direction only.
- 2. a ray of light or bolt of lightning.
- 3. .
- 4. an instrument containing a magnetized pointer which shows the direction of magnetic north and bearings from it.
- 6. is a device that converts motive power into electrical power for use in an external circuit.
- 10. the phenomenon of the interaction of electric currents or fields and magnetic fields.