Electricity and Magnetism

2. Field the lines of force surrounding a permanent magnet or a moving charged particle
5. A flow of electricity through a conductor
8. Any mechanical force that tends to oppose motion
9. attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
11. the entire frequency range of electromagnetic waves
14. Field A field of force surrounding a charged particle
17. engine that converts mechanical energy into electrical energy by electromagnetic induction
19. a meter that measures the flow of electrical current in amperes
20. Electricity Electricity produced by friction
21. meter that measures the potential difference between two points
22. an electrical device that can interrupt the flow of electrical current when it is overloaded

1. Discharge electrical conduction through a gas in an applied electric field
3. Measuring instrument detects electric charge;two gold leaves diverge owing to repulsion of charges with like sign
4. a device that attracts iron and produces a magnetic field
6. Law electric current is directly proportional to voltage and inversely proportional to resistance; I = E/R
7. phenomenon exhibited by materials like iron (nickel or cobalt) that become magnetized in a magnetic field and retain their magnetism when the field is removed
10. a material such as glass or porcelain with negligible electrical or thermal conductivity
12. an electrical device that provides a path for electrical current to flow
13. the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
15. Breaker a device that trips like a switch and opens the circuit when overloaded
16. a device designed to transmit electricity, heat, etc.
18. Motor a motor that converts electricity to mechanical work