If two resistances of 9 and 6 are connected in parallela the total resistance is



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  1. Which of the following elements is active?
  2. What fusion of elements is without chemical action between them?
  3. The factor 0.707for converting peak to rms applies only to
  4. Electron flow assumes charges flow from
  5. The hot resistance of an incandescent lamp is about ___ times its cold resistance.
  6. A switch designed to have low capacitance between its terminal when open.
  7. What is expected when two 20 k a 1 watt resistor in parallel are use instead of one 10 k a 1 watt?
  8. The reason why electrical appliances are connected in parallel.
  9. The unit of elastance is
  10. A linear circuit is one whose parameters
  11. Which of the statements below is not true?
  12. A gang capacitor is a variable capacitor in which capacitance is varied by changing the
  13. What is the rms value of a square wave?
  14. What is the purpose of a load in an electric circuit?
  15. An ac series circuit is composed of a resistance of 20 a inductive reactance of 40 a and a capacitive…
  16. At what frequency will the current in a series RLCcircuit reach its maximum value for an applied voltage…
  17. What is the resonant frequency of a circuit when L of 3 microhenrys and C of 40 picofarads are in series?
  18. A series RLCcircuit has a ______ power factor at its half-power points
  19. The second strip of an electronic resistor color-code represents
  20. A real current source has
  21. Which of the following dielectric materials makes the highest-capacitance capacitor?
  22. The distance between the capacitor plates increases two timesa then its capacitance
  23. According to Gauss theorema flux can be equated to
  24. VL= VCin a series RLCcircuit when
  25. A rheostat is a form of
  26. In an ac circuit with a resistive branch and an inductive branch in parallela the
  27. It is impossible to change the voltage across a capacitor instantlya as this would produce ___ current.
  28. Which of the following capacitors are used only in dc circuits?
  29. When two in-phase sine waves that have identical frequency and amplitude are added togethera then the…
  30. What is the resonant frequency of a circuit when L of 25 microhenrys and C of 10 picofarads are in parallel?