AC and DC

4. To decrease a voltage by mean of transformer
5. Used to measure the effective voltage in alternating voltage.
7. Moving or operating int two usually opposite ways.
12. A device used to transfer electric energy from one circuit to another.
13. Being connected to a voltage.
14. Is the type of current that loses the voltage while passing.
16. In the circuits are resistances (for example: Light bulb).
17. Two-terminal electrical component that stores electrical energy in an electric field.
19. Not being connected to a voltage.

1. A device that creates a specified waveform voltage.
2. Is the distance between the positive and negative peek of the voltage.
3. The surname of the inventor who used DC to power the houses and industries.
4. The type of wave used to represent alternating voltages and current.
6. Creates a field when it is near a metal.
8. Is the type of current that you can transport from farther power plants by using transformers.
9. Surname of the inventor who first used AC.
10. A device for making, breaking, or changing the connections in an electrical circuit.
11. Provides electricity contact with the collector rings and a load.
15. A wound spiral of two or more turns of insulated wire.
18. To increase a voltage by mean of transformer.