Unit 3 Engineering Vocabulary

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Across
  1. 3. opposite or reversed
  2. 6. a variable resistor having three terminals in which the output voltage can be adjusted to a fraction of the input voltage
  3. 7. ratio the ratio between the number of coils of wire wound in the primary side of a transformer as compared to the secondary coil
  4. 10. a temporary magnet where the magnetic field is generated by applying an electric current through a conductor
  5. 12. a medical machine that uses a strong electromagnetic field and radio waves to create digital images of parts of the body
  6. 13. an electromagnetic coil of wire used to impede or oppose changes to electrical current
  7. 15. a system of interconnected components that has a feedback connecting its varied output with its input to make adjustments throughout its process
  8. 16. generated power in which current switches direction through the generator coils as a result of the electromagnetic fields of north and south poles moving past those coils of wire
Down
  1. 1. the energizing of a generator’s electromagnetic field coils using an external source of power before it can start inducing voltage; also called field flashing
  2. 2. a continuous system of interconnected components in which the output does not affect the input and so lacks a feedback
  3. 4. a value of intensity that dictates the ability of a coil of wire to induce a magnetic field
  4. 5. when the magnetic movements in the atoms can align to a total sum of magnetism allowing the material to be a permanent magnet without any external magnetism
  5. 8. the self-induced opposition to the change of electrical current in an inductor under an alternating current power source
  6. 9. a measure of all the field lines flowing out of a magnet’s North Pole
  7. 11. many interconnected components that all participate in manipulating the movement of electric charge to achieve a specific outcome
  8. 14. a type of electromechanical device that uses an electromagnet as its driving power
  9. 17. an electrical component that can store electrical energy and is made up of two conductors separated by anything that acts as an insulator