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When frequency of an ac wave decreasesa the value of XLin a coil

A. Approaches zero

B. Gets larger positively

C. Gets larger negatively

D. Stays constant

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  1. The power factor of a circuit is equal to
  2. What determines the direction of induced emf in a conductor or coil?
  3. Which of the following has negative temperature coefficient?
  4. In a series RLCcircuit
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    Which of the following is the statement of Ohms law?
  6. When current and voltage arte in phase in an ac circuita the ___ is equal to zero.
  7. Which of the following does not affect resistance?
  8. A series RLCcircuit has a ______ power factor at its half-power points
  9. What is the most common non-sinusoidal waveform?
  10. For maximum power transfera what is the relation between load resistance RL and internal resistance…
  11. Which of the following dielectric materials makes the highest-capacitance capacitor?
  12. What is the reciprocal of quality factor?
  13. In a complex number 5 + j 10a 10 is called ___ part.
  14. The reactance curve is a plot of frequency versus _____ for a series RLCcircuit
  15. What can be used to estimate resonant frequency and to find reactance at any frequency for any value…
  16. In an ac circuit with inductive reactance ?, the
  17. What is the specific resistance of a pure germanium?
  18. Series resonant circuit is sometimes known as
  19. An intermittent and non-symmetrical alternating current like that obtained from the secondary winding…
  20. The factor 0.707for converting peak to rms applies only to
  21. Which statement is true about a passive circuit?
  22. Two complex numbers or phasors are said to be conjugate if they
  23. Liquids that are good conductors because of ionization are called
  24. In a complex resistance-reactance planea XLis represented
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    A lead conductor has a resistance of 25 at 0 C. Determine its resistance at -30 C
  26. Which of the following capacitors has the highest cost per F?
  27. Form its definitiona the unit of electric fielda is the N/C and equivalent unit of is the
  28. At parallel resonancea the currents flowing through L and C are
  29. A real current source has
  30. For multi-plate capacitora capacitance is proportional to