Electrotechnology

2. The positive and negative orientation of an electrical circuit or component
5. The electrical pressure that causes current to flow through a circuit
9. The allowable variation from a specified measurement or value
11. The flow of electric charge through a conductor, measured in Amperes
13. The opposition to the flow of electric current in a circuit
16. A material that allows electricity to flow easily, such as copper
17. A material that resists the flow of electricity, such as plastic or rubber

1. A device that changes the voltage level of an alternating current (AC) supply
3. A test instrument used to measure voltage, current, resistance, and other electrical quantities
4. The condition of having an unbroken path that allows the current to flow through a circuit
6. A device used to open or close a circuit, controlling the flow of electricity
7. Rearranging an equation to make a different variable the subject.
8. A device that converts AC to DC
10. A complete path that allows electric current to flow from a power source and back again
12. A resettable protective device that automatically interrupts a circuit during an overload or fault
14. When components are connected one after the other in a single path for current, it is called a (what) circuit?
15. One or more insulated conductors used to carry electrical power or signals