21. The Norton equivalent current is
22. Norton's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent voltage source in series with an equivalent impedance.
23. Thevenin's theorem provides a method for the reduction of any ac circuit to an equivalent form consisting of an equivalent current source in parallel with an equivalent impedance.
24. The Thevenin equivalent voltage is
25. If two currents are in the same direction at any instant of time in a given branch of a circuit, the net current at that instant
26. Norton's theorem gives
27. Referring to the given circuit, what is ZTH if R1 is changed to 220 Ω?
28. Determine VTH if R1 is changed to 3.3 kΩ.
29. Referring to the given figure, determine ZTH as seen by RL if R1 is changed to 3.3 kΩ.
30. Referring to the given circuit, determine ZTH as seen by RL.
