Across
- 3. instrument used to measure the current in a circuit
- 4. electrical component that allows electric current flow in only one direction
- 6. an electromagnetically operated switch
- 7. the 'push' of a battery or power supply in a circuit
- 9. device used to prevent excessive currents flowing in a circuits
- 11. an electric circuit in which one or more diodes are used to convert alternating current to direct current
- 13. device for making and breaking the connection in an electric circuit
- 17. a device used to change the voltage of an a.c. electricity supply
- 18. safety device that automatically switches off a circuit when the current becomes too high
- 19. the rate at which electric charge passes a point in a circuit
Down
- 1. part of a circuit consisting of two resistors connected in series
- 2. a resistor whose resistance changes over small temperature range
- 5. lectromechanical instrument used for detecting and indicating an electric current
- 6. used to control the amount of current flowing around a circuit
- 8. used to detect light levels
- 10. device that converts energy from one form to another
- 12. an electronic component whose output voltage depends on the input voltage
- 14. electrical cells connected together in series
- 15. a hardware component that supplies power to an electrical device
- 16. a circuit that creates a proportional current or voltage output to the current in the path