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The hot resistance of an incandescent lamp is about ___ times its cold resistance.

A.

B.

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  3. What does a capacitor store?
  4. What is a closed path made of several branches of the network called?
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  6. What can be used to estimate resonant frequency and to find reactance at any frequency for any value…
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  8. Which of the following combination of length and cross-sectional area will give a certain volume of…
  9. What is the total resistance of a two equal valued resistors in series?
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  12. When capacitors are connected in seriesa the total capacitance is
  13. If two complex conjugates are addeda ___ components results.
  14. At what frequency will the current in a series RLCcircuit reach its maximum value for an applied voltage…
  15. Which of the following has a positive temperature coefficient?
  16. For greater accuracya the value of phase angle should be determined from
  17. Property of an electric circuit that dissipates electric energy
  18. The admittance of a parallel RLC circuit is found to be the ___ sum of conductance and susceptances.
  19. Electric energy refers to
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  21. The open-circuit voltage at the terminal of load RL is 60V. Under the condition of maximum power transfera…
  22. If the inductance is decreaseda the impedance of the circuit containing a resistor a capacitor and an…
  23. An electric circuit contains
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  25. A real current source has
  26. What theorem is usually used in the analysis of transistor circuit?
  27. The voltage lags the current by cycle in a
  28. When two pure sine waves of the same frequency and the same amplitude which are exactly 180 outof-phase…
  29. Refers to the outward-curving distortion of the lines of force near the edges of two parallel metal…
  30. In an ac circuit with a resistive branch and an inductive branch in parallela the