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The capacitor opposes any change in voltage across it by

A. Passing a voltage proportional to the rate of change of current

B. Acting as a short circuit at time equal to zero

C. Passing a current proportional to the rate of change of voltage

D. Acting as a short circuit at time equal to infinity

You can do it
  1. The hot resistance of an incandescent lamp is about ___ times its cold resistance.
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    A lead conductor has a resistance of 25 at 0 C. Determine its resistance at -30 C
  3. The reactance curve is a plot of frequency versus _____ for a series RLCcircuit
  4. When the net reactance in a series coil-capacitor circuit is zero at frequency fa the nature of its…
  5. A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
  6. The distance between the capacitor plates increases two timesa then its capacitance
  7. The mutual inductance between two coils is ___ the reluctance of magnetic path.
  8. When two in-phase sine waves that have identical frequency and amplitude are added togethera then the…
  9. Which one of the following elements serves as a protection against overload?
  10. If the inductance is decreaseda the impedance of the circuit containing a resistor a capacitor and an…
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    Which of the following is the statement of Ohms law?
  12. What is the other name of relative permittivity?
  13. The Q-factor of a parallel resonant circuit is also known as
  14. A series-parallel combination of identical resistors will
  15. An intermittent and non-symmetrical alternating current like that obtained from the secondary winding…
  16. A trimmer is a variable capacitor in which capacitance is varied by changing the
  17. What is the specific resistance of a pure silicon?
  18. What is the resonant frequency of a circuit when L of 25 microhenrys and C of 10 picofarads are in parallel?
  19. When two unequal values of resistors are connected in parallel across a dc sourcea greater current flows…
  20. A neon glow lamp used as a night light ionizes at approximately
  21. The charging of a capacitor through a resistance follows what law?
  22. What is the half-power bandwidth of a parallel resonant circuit which has a resonant frequency of 3.6…
  23. What theorem is generally used in the analysis of vacuum tubes?
  24. The arc across a switch when it open an RL circuit is a result of the
  25. A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
  26. How many coulombs are delivered by a storage battery in 25 hours if it is supplying current at the rate…
  27. In a circuita a passive element is one which
  28. In dividing or multiplying phasor quantitiesa ___ form is used.
  29. For a parallel ACcircuita ___ is used as a reference phasor.
  30. The impedance in the study of electronics is represented by resistan