In an ac circuit with XL and R in seriesa the

A. Voltages across R and XL are in phase

B. Voltage across R lags the voltage across XLby 90°

C. Voltages across R and XL are 180° outof-phase

D. Voltage across R leads the voltage across XLby 90°

Related Questions

  1. Liquids that are good conductors because of ionization are called
  2. What is the total resistance of a two equal valued resistors in series?
  3. What fusion of elements is without chemical action between them?
  4. For greater accuracya the value of phase angle should be determined from
  5. The wavelength of an alternating waveform depends upon the ___ of the variation.
  6. A capacitor opposes change in
  7. Electron flow assumes charges flow from
  8. Which of the following is the peakiest?
  9. In dividing or multiplying phasor quantitiesa ___ form is used.
  10. A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance…
  11. A gang capacitor is a variable capacitor in which capacitance is varied by changing the
  12. The symbol Q refers to
  13. When the movable plates of a gang capacitor completely overlap the fixed platesa the capacitance of…
  14. The open-circuit voltage at the terminal of load RL is 60V. Under the condition of maximum power transfera…
  15. When the temperature of copper wire is increased its resistance is
  16. A capacitor of 0.5 F charged to 220 V is connected across an uncharged 0.5 F capacitor. What is the…
  17. What is the other name of relative permittivity?
  18. A circuit whose parameters change with voltage or current.
  19. If one resistance in a series connection is opena then
  20. If an emf in circuit A produces a current in circuit Ba then the same emf in circuit Bproduces the same…
  21. In a series RLCcircuit
  22. What is the rms value of a square wave?
  23. The area of capacitor plates increases two timesa then its capacitance
  24. An inductive load always has a ___ power factor
  25. In adding or subtracting phasor quantitiesa ___ form is the most convenient.
  26. Which of the following materials has the lowest dielectric strength?
  27. What is the efficiency under the conditions of maximum power transfer?
  28. What is the reciprocal of capacitance?
  29. What increases the resistance of wire at high frequencies?
  30. Which component opposes voltage change?

Please do not use chat terms. Example: avoid using "grt" instead of "great".