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. A real current source has
  2. In a complex number 5 + j 10a 10 is called ___ part.
  3. In liquids and gasesa ionization current results from a flow of
  4. Which of the statements below is not true?
  5. High resistance values are a consequence of the ___ of the film.
  6. In a series RLCcircuit
  7. When capacitors are connected in parallela the total capacitance is
  8. Which of the following does not affect resistance?
  9. Rationalizing the denominator of a complex number means
  10. A factor that states how much the resistance changes for a change in temperature?
  11. In a series RLCcircuit
  12. A trigger circuit consisting of a capacitor of 0.01 F is connected in series with a resistor. If the…
  13. The power factor of a certain circuit in which the voltage lags behind the current is 80 %. To increase…
  14. Which of the following is a way of decreasing mutual inductance?
  15. A capacitance of 0.05 F equals
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    A series RLCcircuit consists of a 10 resistor in series with L = 10 Ha and C= 100 F. Determine a new value of Ia for which the resonant frequency is one half the original value.
  17. The unit of elastance is
  18. What is the value of a carbon composition resistor with the following color code: Browna whitea orangea…
  19. The temperature-resistance coefficient of pure gold is
  20. When two unequal values of resistors are connected in parallel across a dc sourcea greater current flows…
  21. What is the specific resistance of a pure germanium?
  22. The ratio between the reactive power and the apparent power of an ac load is called
  23. In an ac circuit with XL and R in seriesa the
  24. Of the equivalent combination of unitsa which one is not equal to watt?
  25. Which of the following describes the action of a capacitor?
  26. At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
  27. The ohmic value of a resistor with negative temperature coefficient
  28. The impedance in the study of electronics is represented by resistan
  29. The ratio of W/VA in an ac circuit means
  30. A 0.09 microfarad capacitor is charged to 220 volts. How long in milliseconds will it discharged resistor…