Electricity & Magnetism Vocabulary

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Across
  1. 5. any mechanical force that tends to oppose motion
  2. 6. field the lines of force surrounding a permanent magnet or a moving charged particle
  3. 8. an electrical device that provides a path for electrical current to flow
  4. 11. a flow of electricity through a conductor
  5. 13. 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
  6. 15. attraction for iron; associated with electric currents as well as magnets; characterized by fields of force
  7. 16. meter that measures the potential difference between two points
  8. 18. a field of force surrounding a charged particle
  9. 19. the rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts
  10. 21. a device designed to transmit electricity, heat, etc.
  11. 22. motor a motor that converts electricity to mechanical work
Down
  1. 1. an electrical device that can interrupt the flow of electrical current when it is overloaded
  2. 2. electrical conduction through a gas in an applied electric field
  3. 3. a meter that measures the flow of electrical current in amperes
  4. 4. electricity produced by friction
  5. 7. measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
  6. 9. a material such as glass or porcelain with negligible electrical or thermal conductivity
  7. 10. engine that converts mechanical energy into electrical energy by electromagnetic induction
  8. 12. Law electric current is directly proportional to voltage and inversely proportional to resistance; I = E/R
  9. 14. a device that attracts iron and produces a magnetic field
  10. 17. the entire frequency range of electromagnetic waves
  11. 20. fastening electrical equipment to earth
  12. 23. breaker a device that trips like a switch and opens the circuit when overloaded