Across
- 2. an electric current that reverses its direction many times a second at regular intervalsFriction
- 8. The smallest part of a substance that cannot be broken down chemically
- 11. the one in which the output signal is not fed back to the input of the system
- 13. the SI unit of electromotive force, the difference of potential that would drive one ampere of current against one ohm resistance.
- 15. the basic unit of a chemical element.
- 18. the SI base unit of electrical current.
- 19. a person who directs the performance of an orchestra or choir.
- 20. a stable subatomic particle occurring in all atomic nuclei
- 21. a device having a designed resistance to the passage of an electric current.
- 24. has two or more paths for current to flow through.
- 25. a subtomic particle of about the same mass as a poton but without an electic charge
Down
- 1. an electric current flowing in one direction only.
- 3. a measure of 1,000 watts of electrical power.
- 4. join or blend to form a single entity.
- 5. a stable subatomic particle with a charge of negative electricity
- 6. a container consisting of one or more cells
- 7. a substance which does not readily allow the passage of heat or sound.
- 9. a stable subatomic particle occuring in all atomic nuclei1
- 10. all components are connected end-to-end to form a single path for current flow.
- 12. an electromotive force or potential difference expressed in volts.
- 14. a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space
- 16. the SI unit of power,
- 17. a device having a designed resistance to the passage of an electric current.
- 22. a device having a designed resistance to the passage of an electric current.
- 23. an automatic control system in which an operation, process, or mechanism is regulated by feedback