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Circuit Theorems in AC Analysis - Engineering

Q1:

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

ANS:B - 6.67–333.7° k

ZTH = (8000-12000i)/8000 - 12000i.
= 5538.46-3692.31i.
= 6.67∠ -333.7° k.