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

A.

B.

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  1. Rationalizing the denominator of a complex number means
  2. Which of the following is not a factor affecting dielectric strength?
  3. Loop currents should be assumed to flow in which direction
  4. For a carbon composition resistora typical resistance values range from
  5. A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
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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.
  7. The resistance of an insulator ___ when its temperature is increased.
  8. Electron flow assumes charges flow from
  9. In a series RLCcircuit
  10. Which of the following dielectric materials makes the lowest-capacitance capacitor?
  11. The electric field strength between capacitor plates has a unit
  12. High resistance values are a consequence of the ___ of the film.
  13. What is the reciprocal of capacitance?
  14. In the 5-band method of capacitor color codinga the first band indicates
  15. Which of the following is a common material used in wire-wound resistors?
  16. The charge in the capacitor is stored at the
  17. If a capacitor is rated for 200V dca what is its effective ac working voltage?
  18. Refers specifically to steady state values of quantities in ac circuits which are complex numbers.
  19. The mutual inductance between two coils is ___ the reluctance of magnetic path.
  20. If two resistances of 9 and 6 are connected in parallela the total resistance is
  21. The ratio of the flux density to the electric field intensity in the dielectric is called
  22. A capacitor is basically constructed of
  23. Two capacitors of capacitance 9 F and 18 F in series will have a total capacitance of
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    An impedance given by 90 -45 is a/an ___ impedance.
  25. The reason why electrical appliances are connected in parallel.
  26. Another term for superconductor.
  27. How many coulombs are delivered by a storage battery in 25 hours if it is supplying current at the rate…
  28. The internal resistance of an ideal current source is
  29. Which of the following is a way of decreasing mutual inductance?
  30. If a coil has a Q of 10a it means that