Across
- 2. Electric pressure, electric tension, (electric) potential difference
- 4. The work needed to move a positive test charge from one point to another, divided by the magnitude o the test charge; also called "electric potential" or "potential difference"
- 7. The measure of how strongly an object or material impedes the flow of electric charge produced by a potential difference; equal to the potential difference divided by the current.
- 10. When there is a connection between terminals and current can flow.
- 11. A type of connection in which there is only a single current path
- 15. A type of electrical circuit in which there is only one current path.
- 18. The rate at which energy is transformed.
- 19. A graphical representation of an electrical circuit.
- 20. An "energy transfer" to an electric circuit per unit of electric charge, measured in volts.
- 21. When there is a disconnect between two terminals; resistance is infinite; no current flows between the two terminals.
- 22. A short piece of metal that acts as a safety device by melting and stopping the current when too large a current passes through it.
- 23. A device made up of several galvanic cells connected together that converts chemical energy to electrical energy.
- 24. A flow of electric charge, or electric current, equal to one coulomb per second (1 C/s)
- 26. A material with zero resistance that can conduct electricity without thermal energy transformations.
- 27. An automatic switch that opens when the current through an electric circuit exceeds a threshold value.
- 28. A device that contains an electronic circuit that detects small current differences caused by an extra current path; it opens the circuit, prevents electrocution, and often is required as a safety measure for rooms and outlets.
- 30. A complex electrical circuit that includes both series and parallel.
- 31. The constancy of the total electric charge.
Down
- 1. Occurs when a very low resistance circuit is formed, causing a very large current that could easily start a fire from overheated wires.
- 3. The work needed to move a positive test charge from one point to another, divided by the magnitude of the test charge; also called potential difference
- 5. The value of a single resistor that, when it replaces all the resistors in the circuit, results in the same current.
- 6. The direction in which a positive test charge moves.
- 8. A type of connection in which there are two or more current paths to follow.
- 9. The law that states the current through a conductor between two point is directly proportional to the voltage across the two points.
- 12. A device with a specific resistance; may be wires used to control the current in circuits or parts of circuits.
- 13. An instrument used to measure the current in a circuit.
- 14. A type of electrical circuit in which there are several current paths.
- 16. A series circuit that is used to produce a potential difference source of desired magnitude from a battery with a higher potential difference.
- 17. An energy unit used by electric companies to measure energy sales; 1kWh is equal to 1000 watts delivered continuously for 3600s.
- 25. A closed loop or pathway that allows electric charges to flow.
- 29. An instrument used to measure electric potential difference.