51. Nota

52. Determine V_{TH} if R_{1 }is changed to 3.3 kΩ.

(a) 0.574 ∠16.7° V

(b) 4.63 ∠16.7° V

(c) 4.63 ∠39.5° V

(d) 0.463 ∠39.5° V

53. For the circuit given, determine the Thevenin voltage as seen by R_{L}.

(a) 0.574 ∠16.7° V

(b) 5.74 ∠16.7° V

(c) 0.574 ∠–16.7° V

(d) 5.74 ∠–16.7° V

54. In applying the superposition theorem, ________.

(a) the sources are considered one at a time with all others replaced by their internal impedance

(b) all sources are considered independently

(c) all sources are considered simultaneously

(d) the sources are considered one at a time with all others replaced by their internal resistance

55. Nota

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