Home

When current and voltage arte in phase in an ac circuita the ___ is equal to zero.

A. Resistance

B. Reactance

C. Inductance

D. Capacitance

You can do it
  1. If two equal resistances connected in series across a certain supply are now connected in parallel across…
  2. When two unequal values of resistors are connected in parallel across a dc sourcea greater current flows…
  3. How many degrees of phase represents one full cycle?
  4. Which of the following is neither a basic physical law nor deliverable from one?
  5. Two complex numbers or phasors are said to be conjugate if they
  6. An electric circuit contains
  7. The reason why electrical appliances are connected in parallel.
  8. The open-circuit voltage at the terminal of load RL is 60V. Under the condition of maximum power transfera…
  9. If one resistance in a series connection is opena then
  10. If a coil has a Q of 10a it means that
  11. In a complex number 5 + j 10a 10 is called ___ part.
  12. In a multiple capacitora the plate area is
  13. Which of the following does not generally affect the value of a capacitor?
  14. In a pure capacitancea
  15. The factor 0.707for converting peak to rms applies only to
  16. Tungsten filament of bulbs has a hot resistance higher than its cold resistance due to its temperature…
  17. What value of R is needed with a 0.05 F Cfor an RCtime constant of 0.02 s?
  18. What is the reading of an ohmmeter for a shorted capacitor?
  19. What is the most convenient way of achieving large capacitance?
  20. The average value of a triangular or sawtooth wave is _____ times its peak value.
  21. When the movable plates of a gang capacitor completely overlap the fixed platesa the capacitance of…
  22. The reactance curve is a plot of frequency versus _____ for a series RLCcircuit
  23. Points to be considered in choosing a capacitor
  24. What rating of a resistor determines its ability to absorb heat?
  25. Which of the following does not affect resistance?
  26. A switch designed to have low capacitance between its terminal when open.
  27. When resistance are connected in parallela the total resistance is
  28. A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
  29. When capacitors are connected in seriesa the total capacitance is
  30. The ratio between the active power and the apparent power of a load in an ac circuit is called