Referring to the given circuit, what is ZTH if R1 is changed to 220 � – McqOptions

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1.	Referring to the given circuit, what is ZTH if R1 is changed to 220 ≈í¬©?$?
A.	225 ‚Äö√ ‚Ä 12.1¬¨‚àû ≈í¬©
B.	225 ‚Äö√ ‚Ä 77.9¬¨‚àû ≈í¬©
C.	46 ‚Äö√ ‚Ä 77.9¬¨‚àû ≈í¬©
D.	46 ‚Äö√ ‚Ä 12.1¬¨‚àû ≈í¬©
Answer» D. 46 ‚Äö√ ‚Ä 12.1¬¨‚àû ≈í¬©

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