Network Theory

1. What is   Duality?
2. Two voltage sources can be connected in parallel when they are equal in
3. The Kirchhoff’s law fails in
 4. A network consisting of four terminals is called a
5. Driving point of a network is
6. When two port networks are connected in parallel the resultant
(a) Y- parameters are the some of individual parameters
7. The response of a network is decided by the location of
(a) Its poles
8. Example of two port network is
9. The circuit whose properties are same in either direction is called
10. The general parameters distributed along a transmission line are
 11. Norton theorem is valid for network containing only
12. The maximum power is absorbed by one network from other, joined to it at two terminals when the impedance of one is
13. A network is said to be nonlinear if it does not satisfy
14. An capacitor with zero initial condition at t = 0+ act as a
15. An inductor stores energy in
16. In series LCR circuits, at resonance,
17. In an RCL series circuit, during resonance, the impedance will be
18. When a source is delivering maximum power to load, the efficiency of the circuit is always
19. A passive network has
 20. Two resistances are connected in parallel and each dissipates 50 waits. The total power supplied by the source is
21. Three bulbs of 60 watts each are connected is parallel across 220v, 50 Hz supply. If one bulb burns out

22. Resistance of conductor depends on

23. The ratio of voltage and electric current in a closed circuit

24. The resistance of a wire varies inversely as

25. Four resistors, each of resistance R ohms are available. The minimum resistance of the combination will be

26. The elements which are not capable of delivering energy by its own are known as

27. The magnetic susceptibility of paramagnetic material is

28. The Direction of current in an ac circuit

29. Which of the following statements associated with purely resistive circuits is correct?

30. The magnetic field energy in an inductor changes from maximum value to

 minimum value in 5m sec when connected to an ac source. The frequency of the source is

31. According to Thevinin’s theorem, any linear active network can be replaced by a single voltage source

32. The internal resistance of ammeter is

33. The total instantaneous power in a 3phase balanced system is

34. What is inductive &capacitive reactance at resonance

35. Tellegen’s theorem is applicable for

36. Substitution thermo is applies for which networks

37. Rank of incidence matrix is

38. A voltage of 10v applied to a 2.5ohm resistance, find current , power and energy dissipated in 10min

39. Time constant of series RL circuit

40. Time constant of series RC circuit

41. Damping factor (ζ) for critically damping

42. Damping factor (ζ) for over damping

43. Damping factor (ζ) for under damping

44. The ideal transformer can not be described by which parameter

45. When network are connected in the series, it is convenient to use which parameter

46. Internal resistance of ideal voltage source

47. Internal resistance of ideal current source

48. Example for bilateral elements

49. Example for unilateral elements

50. When network are connected in the parallel, it is convenient to use which parameter