A trimmer is a variable capacitor in which capacitance is varied by changing the

A. Number of plates

B. Dielectric

C. Distance between plates

D. Plate area

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. In an ac circuit with XL and R in seriesa the
  2. The average value of a triangular or sawtooth wave is _____ times its peak value.
  3. An inductive load always has a ___ power factor
  4. The electric field strength between capacitor plates has a unit
  5. In a rectangular wavea the form factor is
  6. A capacitor consists of two
  7. Two capacitors of capacitance 9 F and 18 F in series will have a total capacitance of
  8. Refers to the outward-curving distortion of the lines of force near the edges of two parallel metal…
  9. Which of the following is a disadvantage of a wire-wound resistor?
  10. What value of R is needed with a 0.05 F Cfor an RCtime constant of 0.02 s?
  11. What is the most convenient way of achieving large capacitance?
  12. What is the reading of an ohmmeter for a shorted capacitor?
  13. Which of the following is a way of decreasing mutual inductance?
  14. A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
  15. What is the specific resistance of a pure germanium?
  16. The ratio between the active power and the apparent power of a load in an ac circuit is called
  17. Which of the following does not generally affect the value of a capacitor?
  18. Which of the following does not refer to electrical energy?
  19. The distance between the capacitor plates increases two timesa then its capacitance
  20. Conventional flow assumes charges flow from
  21. Another term for superconductor.
  22. When the power factor of a circuit is zeroa
  23. The second strip of an electronic resistor color-code represents
  24. A capacitor is used to
  25. If three 9 mH inductors are connected in parallel without mutual inductance then the total i nductance…
  26. Form its definitiona the unit of electric fielda is the N/C and equivalent unit of is the
  27. In a series circuit with unequal resistances the
  28. Which of the following materials has the lowest dielectric strength?
  29. When the temperature of copper wire is increased its resistance is
  30. If three 100-pF capacitors are connected in seriesa then the total capacitance is