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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. In a complex resistance-reactance planea XLis represented
  2. In an inductive coila the rate of rise of current is maximum
  3. What determines the magnitude of electric current?
  4. At what frequency will the current in a series RLCcircuit reach its maximum value for an applied voltage…
  5. If three 9 mH inductors are connected in parallel without mutual inductance then the total i nductance…
  6. An open inductor has
  7. What is a rotating vector whose projection can represent either current or voltage in an ac circuit?
  8. Loop currents should be assumed to flow in which direction
  9. The superposition theorem is used when the circuit contains
  10. Which of the following is also known as antiresonant circuit?
  11. Barium-strontium titanite dielectric material is also called
  12. It is impossible to change the voltage across a capacitor instantlya as this would produce ___ current.
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    In Nortons theorema the short circuit current is obtained by
  14. An intermittent and non-symmetrical alternating current like that obtained from the secondary winding…
  15. Electric energy refers to
  16. Which of the following elements is active?
  17. Which waveform in which the rms value and the mean value are equal?
  18. If two resistances of 9 and 6 are connected in parallela the total resistance is
  19. In a rectangular wavea the form factor is
  20. In a circuita an active element is one which
  21. Which of the following represents the energy stored in a cap
  22. The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
  23. What increases the resistance of wire at high frequencies?
  24. Which of the following is neither a basic physical law nor deliverable from one?
  25. When voltage is applied across a ceramic dielectric the electrostatic field p roduced is 50 times greater…
  26. The ratio of W/VA in an ac circuit means
  27. An open resistor when checked with an ohmmeter reads
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  30. The rms value of a triangular or sawtooth waveform is ___ tim value.