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

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  1. What rating of a resistor determines its ability to absorb heat?
  2. In liquids and gasesa ionization current results from a flow of
  3. When capacitors are connected in parallela the total capacitance is
  4. When two coils of identical reactance are in parallel without mutual inductancea the reactance of the…
  5. Which waveform in which the rms value and the mean value are equal?
  6. What fusion of elements is without chemical action between them?
  7. A capacitor of 0.5 F charged to 220 V is connected across an uncharged 0.5 F capacitor. What is the…
  8. Parallel resonant circuit is sometimes called as
  9. In a series RLCcircuit
  10. Resistor with colored bands in the body
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  13. Which of the following represents the energy stored in a cap
  14. An inductive circuit of resistance 16.5 and inductance of 0.14 H takes a current of 25 ?. if the frequency…
  15. Which of the following conditions is not true for a series RLCcircuit at resonance?
  16. What refers to the lowest voltage across any insulator that can cause current flow?
  17. A real current source has
  18. In the 5-band method of capacitor color codinga the first band indicates
  19. Conventional flow assumes charges flow from
  20. A 5 F capacitor charge to 5V has a stored charge equal to
  21. When voltage is applied across a ceramic dielectric the electrostatic field p roduced is 50 times greater…
  22. The distance between the capacitor plates increases two timesa then its capacitance
  23. At parallel resonancea the currents flowing through L and C are
  24. What is the reciprocal of quality factor?
  25. The area of capacitor plates increases two timesa then its capacitance
  26. What refers to such work at very low temperaturesa near absolute zero?
  27. For maximum power transfera what is the relation between load resistance RL and internal resistance…
  28. A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
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    Nortons theorem is ____ Thevenins theorem.