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In a circuita an active element is one which

A. Supplies energy

B. Receives energy

C. Both supplies and receives energy

D. Amplifies signal

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  1. The reason why alternating current can induce voltage is
  2. If voltage across the plates of 2 F capacitor is increased by 4 Va then charge on the plates will
  3. A rheostat is a form of
  4. The wavelength of an alternating waveform depends upon the ___ of the variation.
  5. A series RL circuit has R of 10 and XL of 5 a its impedance in rectangular form is given by
  6. The temperature-resistance coefficient of pure gold is
  7. In a circuita a passive element is one which
  8. The average value of a triangular or sawtooth wave is _____ times its peak value.
  9. The ratio of maximum value to the effective value of an alternating quantity is called
  10. When current and voltage arte in phase in an ac circuita the ___ is equal to zero.
  11. What rating of a resistor determines its ability to absorb heat?
  12. In a series RLCcircuit
  13. What fusion of elements is without chemical action between them?
  14. Inductive reactance applies only to sine waves because it
  15. If a coil has a Q of 10a it means that
  16. An ac series circuit is composed of a resistance of 20 a inductive reactance of 40 a and a capacitive…
  17. Series resonant circuit is sometimes known as
  18. The temperature coefficient of resistance of electrolytes is
  19. In a complex number 5 + j 10a 10 is called ___ part.
  20. The charge in the capacitor is stored at the
  21. The ohmic value of a resistor with negative temperature coefficient
  22. Voltage resonance means
  23. If the output resistance of a voltage source is 4 a it internal resistance should be
  24. For parallel capacitorsa total charge is
  25. The Q-factor of a parallel resonant circuit is also known as
  26. Which of the following capacitors has the highest cost per F?
  27. When two complex conjugates are subtracteda the result is a
  28. A switch designed to have low capacitance between its terminal when open.
  29. When frequency of an ac wave decreasesa the value of XLin a coil
  30. An open inductor has