Electronics Maze

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Across
  1. 4. Reference point in a circuit with zero voltage (6 letters)
  2. 6. Tool used to measure voltage, current, and resistance (10 letters)
  3. 7. Device that opens or closes a circuit (6 letters)
  4. 9. Board for prototyping electronic circuits without soldering (10 letters)
  5. 12. Unit of power in an electric circuit (4 letters)
  6. 14. Unit of electrical resistance (3 letters)
  7. 15. A semiconductor device used to amplify or switch signals (10 letters)
  8. 16. The potential difference that drives current in a circuit (7 letters)
  9. 18. Unit of electric current (3 letters)
  10. 19. Component that stores electrical energy temporarily (9 letters)
  11. 20. Device that detects changes in physical conditions (6 letters)
Down
  1. 1. Material that allows electric current to flow easily (9 letters)
  2. 2. A diode that emits light when current flows through it (3 letters)
  3. 3. Device that provides voltage and stores energy chemically (7 letters)
  4. 5. Component that opposes the flow of current (8 letters)
  5. 8. A closed loop through which current can flow (7 letters)
  6. 10. Component that allows current to flow in only one direction (5 letters)
  7. 11. Conductive path for current in a circuit (4 letters)
  8. 13. Material that resists the flow of electric current (9 letters)
  9. 17. The flow of electric charge (7 letters)