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31 Matching questions

  1. series-opposing combination
  2. power
  3. self-inductance
  4. transformer equation
  5. self-induced emf
  6. dielectric constant
  7. primary, secondary
  8. capacitance
  9. farad
  10. transformer
  11. henrys
  12. inductance
  13. step-down transformer
  14. mutual inductance
  15. inductor
  16. henry
  17. packing density
  18. step-up transformer
  19. root-mean-square (rms) value
  20. Joseph Henry
  21. series-aiding combination
  22. ninety-five
  23. microfarads, picofarads
  24. dielectric
  25. opposes
  26. dielectric strength
  27. house current
  28. rate, resistance
  29. area, closer together, dielectric
  30. joule heat
  31. capacitor
  1. a the physicist who experimented with electricity and magnetism and discovered electromagnetic induction independently of Faraday
  2. b Because they typically store only very small amounts of charge, capacitors usually have capacitances measured in _____ or _____.
  3. c term for the maximum potential gradient that a material can withstand before it begins to conduct current
  4. d The 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 _____.
  5. e term that describes a material that reduces the voltage associated with a given state of charge
  6. f term for the current furnished by electric power companies
  7. g term for the equation that relates the voltages and numbers of turns in the primary and secondary coils of a transformer
  8. h term for a device for producing a fixed increase or decrease in voltage
  9. i If two coils in separate circuits are brought close together, changing current in the first (____) coil induces a current in the second (______) coil.
  10. j term for a circuit element with the property of self-inductance
  11. k term for the tendency of a loop or a coil to oppose any change in current
  12. l term for the heat generated by current when it passes through a resistance
  13. m term for the number of turns per unit length of a coil
  14. n term for a transformer that decreases voltage
  15. o the unit of capacitance
  16. p term for the maximum charge that a plate can hold
  17. q the unit of inductance
  18. r If a change in magnetic flux arises from a fluctuation of current within the conducting loop itself, ______ ___ is produced.
  19. s term for the time rate of work
  20. t Capacitance may be changed by:
    1.) Increasing the ___ of each plate.
    2.) Bringing the plates ____ _____.
    3.) Filling the gap between the plates with _____.
  21. u term for the induction of an emf in one coil by another coil
  22. v Mutual inductance is measured in ____.
  23. w An induced emf ____ the change inducing it.
  24. x term for a transformer that increases voltage
  25. y term for an arrangement in which self-inductance and mutual inductance have contrary effects
  26. z term for the combined effect of both mutual inductance and self-inductance
  27. aa term for the factor by which capacitance is multiplied when a certain material is used as a dielectric
  28. ab term for an arrangement in which the self-inductance in each coil is enhanced by mutual inductance because all the magnetic flux in both coils runs in the same direction
  29. ac term for a charge-storing device consisting of two conductors in near relation but not touching
  30. ad A well-designed transformer transmits energy from the primary circuit to the secondary circuit with above _____ percent efficiency.
  31. ae term for the effective value of an alternating current