Qimiwa - Electric Circuits

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Across
  1. 3. a circuit where the signal must be one of two discrete levels.
  2. 5. A passive electrical device that transfers electrical energy from one electrical circuit to another
  3. 9. a component that has a (variable) resistance that changes with the light intensity that falls upon it.
  4. 10. A type of switch that works using an electromagnet
  5. 12. included in circuits to stop excessive currents from flowing
  6. 13. A device used for making and breaking electric current through the circuit
  7. 14. A measuring instrument used to measure the current in a circuit
  8. 15. An instrument used for measuring electric potential difference between two points in an electric circuit
  9. 19. An electronic device that converts energy from one form to another
  10. 20. an electric current which periodically reverses direction and changes its magnitude continuously with time
  11. 21. A resistor whose resistance is dependent on temperature
Down
  1. 1. a semiconductor light source that emits light when current flows through it.
  2. 2. A component that allows electric current to flow in one direction only
  3. 4. A set of connected cells
  4. 6. a circuit where the voltage could have any value, positive or negative
  5. 7. a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock.
  6. 8. The conversion of an alternating current (AC) to a direct current (DC)
  7. 11. a device that receives one or more electrical input signals, and produces an output signal that depends on those input signals
  8. 16. Used to control the amount of current flowing around a circuit
  9. 17. An electromechanical instrument used for detecting and indicating an electric current.
  10. 18. an electric current that is uni-directional, so the flow of charge is always in the same direction.