Electricity Vocabulary

3. the rate at which electrical energy is converted to another form; calculated by multiplying voltage by current
7. the difference in electrical potential energy between two places in an electric field, equal to potential difference
9. the transfer of excess charge through a conductor to Earth
10. opposition to the flow of electric charges in a material
11. the study of the behavior of electric charges, including how charge is transferred between objects
14. an electric circuit with only one path through which charge can flow
16. the difference in electrical potential energy between two places in an electric field, equal to voltage
21. a material through which electric charge can flow easily
22. a property that causes subatomic particles such as protons and electrons to attract or repel each other
23. a device that converts chemical energy to electrical energy
24. a programmable device that can store and process information
25. a material that has almost zero resistance when it is cooled to low temperatures
26. an electric circuit with two or more paths through which charges can flow
27. a flow of electric charge in only one direction
28. attraction or repulsion between electrically charged objects
29. information sent as patterns in the controlled flow of electrons through a circuit

1. a flow of electric charge that regularly reverses its direction
2. a field in a region of space that exerts electric forces on charged, particles; a field produced by electric charges or by changing magnetic fields
4. a solid-state component with three layers of semiconductor material, used to turn current on or off or to increase the strength of electric signals
5. state that the voltage in a circuit equals the product of the current and the resistance
6. a material through which electric charge cannot flow easily
8. a thin slice of silicon that contains many solid-state components; a microchip
12. a transfer of charge without contact between materials
13. a switch that opens when current in a circuit is too high
15. acontinuous flow of electric charge, SI unit used to measure is the ampere or amp (A)
17. a device that prevents overheating due to current overload in a circuit
18. a complete path through which charge can flow
19. the science of using electric current to process or transmit information
20. a crystalline solid that conducts current only under certain conditions