AC and DC

4. The type of wave used to represent alternating voltages and current.
6. To increase a voltage by mean of transformer.
8. A device for making, breaking, or changing the connections in an electrical circuit.
12. Being connected to a voltage.
14. Surname of the inventor who first used AC.
15. A wound spiral of two or more turns of insulated wire.
17. In the circuits are resistances (for example: Light bulb).
18. Creates a field when it is near a metal.
19. A device used to transfer electric energy from one circuit to another.
20. Moving or operating int two usually opposite ways.

1. Provides electricity contact with the collector rings and a load.
2. A device that creates a specified waveform voltage.
3. Is the type of current that loses the voltage while passing.
5. To decrease a voltage by mean of transformer
7. Not being connected to a voltage.
9. Two-terminal electrical component that stores electrical energy in an electric field.
10. Is the distance between the positive and negative peek of the voltage.
11. Is the type of current that you can transport from farther power plants by using transformers.
13. The surname of the inventor who used DC to power the houses and industries.
16. Used to measure the effective voltage in alternating voltage.