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What increases the resistance of wire at high frequencies?

A. Temperature

B. Voltage

C. Skin effect

D. Insulation

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  1. When two complex conjugates are subtracteda the result is a
  2. Of the equivalent combination of unitsa which one is not equal to watt?
  3. When two coils of identical reactance are in parallel without mutual inductancea the reactance of the…
  4. The arc across a switch when it open an RL circuit is a result of the
  5. Which of the following is the peakiest?
  6. The factor 0.707for converting peak to rms applies only to
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  8. Loop currents should be assumed to flow in which direction
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  10. In an ac wavea 30 degrees of phase is ___ of a cycle.
  11. The potential gradient in a cable is maximum in
  12. The ratio of maximum value to the effective value of an alternating quantity is called
  13. The power factor of a circuit is equal to
  14. If three 100-pF capacitors are connected in seriesa then the total capacitance is
  15. Which of the following is the most popular waveform?
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    A capacitance of 6 F means
  17. An open inductor has
  18. What theorem is usually used in the analysis of transistor circuit?
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    Nortons theorem is ____ Thevenins theorem.
  20. What determines the magnitude of electric current?
  21. In a series RLCcircuit
  22. Tungsten filament of bulbs has a hot resistance higher than its cold resistance due to its temperature…
  23. For maximum power transfera what is the relation between load resistance RL and internal resistance…
  24. What is the total capacitance of 10 capacitorsa each of 20 F in series?
  25. What is the conductance of a circuit having three 10 resistors in parallel?
  26. High resistance values are a consequence of the ___ of the film.
  27. In liquids and gasesa ionization current results from a flow of
  28. What refers to the lowest voltage across any insulator that can cause current flow?
  29. Which of the following is neither a basic physical law nor deliverable from one?
  30. The temperature coefficient of resistance of electrolytes is