Which of the following represents the energy stored in a cap

A. CV2/2

B. 2Q2/C

C. C2/V


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  1. Which of the following represents the energy stored in a cap
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    A lead conductor has a resistance of 25 at 0 C. Determine its resistance at -30 C
  3. Which of the following dielectric materials makes the highest-capacitance capacitor?
  4. What refers to the lowest voltage across any insulator that can cause current flow?
  5. At what frequency will an inductor of 5mH have the same reactance as a capacitor of 0.1 F?
  6. The presence of an electric current is made known by
  7. It is impossible to change the voltage across a capacitor instantlya as this would produce ___ current.
  8. Transient period is considered over after
  9. An inductive circuit of resistance 16.5 and inductance of 0.14 H takes a current of 25 ?. if the frequency…
  10. For greater accuracya the value of phase angle should be determined from
  11. Which waveform in which the rms value and the mean value are equal?
  12. The unit of elastance is
  13. Which of the following is not considered a physical factor affecting resistance?
  14. The ratio of the flux density to the electric field intensity in the dielectric is called
  15. A term used to express the amount of electrical energy stored in electrostatic field.
  16. What is the rms value of a square wave?
  17. A gang capacitor is a variable capacitor in which capacitance is varied by changing the
  18. Points to be considered in choosing a capacitor
  19. What determines the direction of induced emf in a conductor or coil?
  20. In calculating maximum instantaneous power ___ voltage or current is used.
  21. If three 100-pF capacitors are connected in seriesa then the total capacitance is
  22. Which of the following capacitors is suitable for dc filter circuits?
  23. Which of the following dielectric materials makes the lowest-capacitance capacitor?
  24. The second strip of an electronic resistor color-code represents
  25. Conventional flow assumes charges flow from
  26. The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
  27. When frequency of an ac wave decreasesa the value of XLin a coil
  28. Which one of the following elements serves as a protection against overload?
  29. What value of R is needed with a 0.05 F Cfor an RCtime constant of 0.02 s?
  30. When two in-phase sine waves that have identical frequency and amplitude are added togethera then the…