Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.

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Across: 1. Can be step-up or step-down 3. Frame to put the primary on 4. Induced by changing magnetic field 6. At right angles 7. Made of layers 9. Wire moving through magnetic field shows this effect. 11. Coil connected to voltage source 13. Found on the armature of a DC motor 14. Coil of wire in a motor or generator 15. Voltage is induced in this coil 16. This effect shows the force on a current-carrying wire in a magnetic field

Down: 2. Transformers work on this 3. Makes a force on a wire in a magnetic field 5. The result of interaction between current and magnetic field 8. Found on the armature of an ac generator 10. Connected to 10 down 12. Field in these effects