Exercise: Circuit Theorems In Ac Analysis

Questions for: Circuit Theorems In Ac Analysis

The two basic components of a Thevenin equivalent ac circuit are
A:
the equivalent voltage source and the equivalent series impedance
B:
the equivalent voltage source and the equivalent series resistance
C:
the equivalent voltage source and the equivalent parallel impedance
D:
the equivalent voltage source and the equivalent parallel resistance
Answer: A
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Referring to the given figure, determine ZTH as seen by RL if R1 is changed to 3.3 k.

A:
1488–70.7°
B:
3859 –31.2°
C:
5180 –50.5°
D:
1828–50.2°
Answer: D
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Determine VTH for the circuit external to RL in the given figure.

A:
13563.4° V
B:
13.563.4° V
C:
13.50° V
D:
1350° V
Answer: B
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Referring to the given circuit, what is ZTH if R1 is changed to 220 ?

A:
22512.1°
B:
22577.9°
C:
4677.9°
D:
4612.1°
Answer: C
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For the circuit shown, determine ZTH for the portion of the circuit external to RL.

A:
66.7 –33.7° k
B:
6.67–333.7° k
C:
14.4 –56.3° k
D:
1.44 –33.7° k
Answer: B
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