Series resonance occurs when


B. XL= R

C. Z = R

D. Both A and C

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  1. A capacitor is used to
  2. A gang capacitor is a variable capacitor in which capacitance is varied by changing the
  3. An intermittent and non-symmetrical alternating current like that obtained from the secondary winding…
  4. If voltage across the plates of 2 F capacitor is increased by 4 Va then charge on the plates will
  5. In a rectangular wavea the peak factor is
  6. What can be used to estimate resonant frequency and to find reactance at any frequency for any value…
  7. What is the peak factor for alternating current or voltage varying sinusiodally?
  8. Which of the following has a positive temperature coefficient?
  9. Which of the following describes the action of a capacitor?
  10. A capacitor consists of two
  11. Nortons theorem is what form of an ac equivalent circuit?
  12. In the 5-band method of capacitor color codinga the first band indicates
  13. In an ac circuita the power dissipated as heat depends on
  14. The reason why alternating current can induce voltage is
  15. Which of the following capacitors are used only in dc circuits?
  16. In a resonant circuita if Q ? 10 resonant frequency _______ bandwidth.
  17. As applied to a series RLCcircuita bandwidth means
  18. What is the hot resistance of a 100 Wa 220 V incandescent lamp?
  19. A lead conductor has a resistance of 25 at 0 C. Determine its resistance at -30 C
  20. Barium-strontium titanite dielectric material is also called
  21. When two pure sine waves of the same frequency and the same amplitude which are exactly 180 outof-phase…
  22. What is the purpose of a load in an electric circuit?
  23. What is the total resistance of a two equal valued resistors in series?
  24. The potential gradient in a cable is maximum in
  25. A capacitor opposes change in
  26. The charging of a capacitor through a resistance follows what law?
  27. In an RL series circuita
  28. Of the equivalent combination of unitsa which one is not equal to watt?
  29. Why are inductance and capacitance not relevant in a dc circuit?
  30. The ratio of maximum value to the effective value of an alternating quantity is called