Science

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Across
  1. 2. a length of something wound in a joined sequence of concentric rings.
  2. 3. an electric current flowing in one direction only.
  3. 4. an instrument containing a magnetized pointer which shows the direction of magnetic north and bearings from it.
  4. 7. a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
  5. 9. a generator is a device that converts motive power into electrical power for use in an external circuit.
  6. 10. draw out and twist (the fibres of wool, cotton, or other material) to convert them into yarn, either by hand or with machinery.
Down
  1. 1. the phenomenon of the interaction of electric currents or fields and magnetic fields.
  2. 5. an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
  3. 6. a long, narrow part or section forming the handle of a tool or club, the body of a spear or arrow, or similar.
  4. 8. An electric motor is an electrical machine that converts electrical energy into mechanical energy.