Referring to the given circuit, find ZTH for the part of the circuit – McqOptions

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1.	Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.
A.	129 ∠21.4° Ω
B.	43.7 ∠68.6° Ω
C.	43.7 ∠21.4° Ω
D.	12.9 ∠68.6° Ω
Answer» C. 43.7 ∠21.4° Ω

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