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Across 5. device that increases or decreases the voltage of an alternating current 6. device that changes electrical energy into mechanical energy 10. reverses the direction of the current in a regular pattern 12. devices that use an electromagnet to measure electric current 13. where the magnetic force exerted by the magnet is strongest

Down 1. the generation of a current by a changing magnetic field 2. a large wheel that rotates when pushed by water, wind, or steam 3. flows only in one direction through a wire 4. a single wire wrapped into a cylindrical wire coil 6. is a temporary magnet made by wrapping a wire coil carrying a current around an iron core 7. the groups of atoms with aligned magnetic poles 8. Uses electromagnetic induction to transform mechanical energy into electrical energy 9. exerts a force on other magnets and objects made of magnetic materials 11. refers to the properties and interactions of magnets