Electrical components

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Across
  1. 3. electrical power
  2. 6. material electric travels through
  3. 7. electrical current
  4. 8. a device that opens to protect the transformer
  5. 9. a switch
Down
  1. 1. where power comes from
  2. 2. the part of the circuit where A/C goes back to the source
  3. 4. a device that increases or decreases voltage
  4. 5. the source for DC voltage