Home

When two coils of identical reactance are in parallel without mutual inductancea the reactance of the combination is ___ the reactance of each coil.

A. One half

B. Twice

C. Four times

D. One fourth

You can do it
  1. When voltage is applied across a ceramic dielectric the electrostatic field p roduced is 50 times greater…
  2. What is the time constant for L of 240 mH in series with R of 20 ?
  3. A capacitor of 0.5 F charged to 220 V is connected across an uncharged 0.5 F capacitor. What is the…
  4. The ratio of maximum value to the effective value of an alternating quantity is called
  5. Which of the following does not refer to electrical energy?
  6. What is the temperature coefficient of the resistance Eureka?
  7. The wavelength of an alternating waveform depends upon the ___ of the variation.
  8. If three 9 mH inductors are connected in parallel without mutual inductance then the total i nductance…
  9. In an RL series circuita
  10. What refers to such work at very low temperaturesa near absolute zero?
  11. A coil of inductance L has an inductive reactance of XLin an ac circuit in which the effective current…
  12. The Q-factor of a parallel resonant circuit is also known as
  13. For multi-plate capacitora capacitance is proportional to
  14. Which of the following does not generally affect the value of a capacitor?
  15. What capacitance exists not through design but simply because two conducting surfaces are relatively…
  16. Property of an electric circuit that dissipates electric energy
  17. Which of the following represents the energy stored in a cap
  18. Which of the following is a way of decreasing mutual inductance?
  19. In an inductive coila the rate of rise of current is maximum
  20. A capacitive load always has a ______ power facto
  21. What is the complex impedance of a circuit with an absolute resistance of 300 ?
  22. The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
  23. What is the resonant frequency of a circuit when L of 25 microhenrys and C of 10 picofarads are in parallel?
  24. The voltage cannot be exactly in phase with the current in a circuit that contains
  25. The curve between current and frequency is termed as
  26. For maximum power transfera what is the relation between load resistance RL and internal resistance…
  27. Which of the following is a common material used in wire-wound resistors?
  28. An inductance of 1 mH is
  29. Leakage resistance in a capacitor results into
  30. What is the total resistance of a two equal valued resistors in series?