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When the net reactance in a series coil-capacitor circuit is zero at frequency fa the nature of its reactance of frequency 2f is

A. Inductive

B. Capacitive

C. Resistive

D. Infinite

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  1. A 5 F capacitor charge to 5V has a stored charge equal to
  2. Which of the following elements is active?
  3. The charging of a capacitor through a resistance obeys
  4. An ac series circuit is composed of a resistance of 20 a inductive reactance of 40 a and a capacitive…
  5. In a parallel bank with unequal branch resistances
  6. The ___ of an alternating quantity is defined as the fractional part of a period or cycle through which…
  7. Metal tin becomes superconductor at approximately
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    A series RLCcircuit consists of a 10 resistor in series with L = 10 Ha and C= 100 F. Determine a new value of Ia for which the resonant frequency is one half the original value.
  9. The ohmic value of a resistor with negative temperature coefficient
  10. How many degrees of phase represents one full cycle?
  11. An alloy composed of 84 % coppera 12 % manganese and 4 % nickel.
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    Kirchhoffs laws (KCL and KVL) are applicable to
  13. What is the total resistance of a two equal valued resistors in series?
  14. Which of the following conditions is not true for a series RLCcircuit at resonance?
  15. The graph between an alternating quantity and time is called
  16. An inductor carries 2 A dc. If its inductance is 100 Ha then what is its inductive reactance?
  17. The capacitor opposes any change in voltage across it by
  18. A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?
  19. The voltage cannot be exactly in phase with the current in a circuit that contains
  20. The Q-factor of a parallel resonant circuit is also known as
  21. In a series RLCcircuit
  22. A series-parallel combination of identical resistors will
  23. A capacitive load always has a ______ power facto
  24. What is the time constant for L of 240 mH in series with R of 20 ?
  25. In a complex number 5 + j 10a 10 is called ___ part.
  26. The wavelength of an alternating waveform depends upon the ___ of the variation.
  27. What increases the resistance of wire at high frequencies?
  28. Loop currents should be assumed to flow in which direction
  29. In a circuita a passive element is one which
  30. For a parallel ACcircuita ___ is used as a reference phasor.