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31 True/False questions

  1. capacitorterm for the maximum charge that a plate can hold

          

  2. packing densitythe physicist who experimented with electricity and magnetism and discovered electromagnetic induction independently of Faraday

          

  3. opposesAn induced emf ____ the change inducing it.

          

  4. rate, resistanceterm for the maximum charge that a plate can hold

          

  5. mutual inductanceterm for the combined effect of both mutual inductance and self-inductance

          

  6. series-opposing combinationterm for an arrangement in which self-inductance and mutual inductance have contrary effects

          

  7. henrysthe unit of inductance

          

  8. step-down transformerterm for a transformer that increases voltage

          

  9. step-up transformerterm for a transformer that increases voltage

          

  10. transformer equationterm for a device for producing a fixed increase or decrease in voltage

          

  11. ninety-fiveA well-designed transformer transmits energy from the primary circuit to the secondary circuit with above _____ percent efficiency.

          

  12. capacitanceterm for the maximum charge that a plate can hold

          

  13. dielectric strengthterm for the factor by which capacitance is multiplied when a certain material is used as a dielectric

          

  14. primary, secondaryIf two coils in separate circuits are brought close together, changing current in the first (____) coil induces a current in the second (______) coil.

          

  15. faradthe unit of inductance

          

  16. house currentterm for the heat generated by current when it passes through a resistance

          

  17. root-mean-square (rms) valueThe effective value of an alternating current is regarded as equal to the direct current that would produce heat at the same average ___ in the same _____.

          

  18. henryMutual inductance is measured in ____.

          

  19. series-aiding combinationterm for an arrangement in which self-inductance and mutual inductance have contrary effects

          

  20. inductorterm for a circuit element with the property of self-inductance

          

  21. powerterm for the time rate of work

          

  22. dielectric constantterm for the factor by which capacitance is multiplied when a certain material is used as a dielectric

          

  23. transformerterm for the time rate of work

          

  24. joule heatterm for the heat generated by current when it passes through a resistance

          

  25. microfarads, picofaradsBecause they typically store only very small amounts of charge, capacitors usually have capacitances measured in _____ or _____.

          

  26. area, closer together, dielectricterm that describes a material that reduces the voltage associated with a given state of charge

          

  27. self-inductanceterm for the tendency of a loop or a coil to oppose any change in current

          

  28. Joseph Henryterm for the heat generated by current when it passes through a resistance

          

  29. inductanceterm for a circuit element with the property of self-inductance

          

  30. dielectricterm for a circuit element with the property of self-inductance

          

  31. self-induced emfterm for the tendency of a loop or a coil to oppose any change in current