Referring to the given circuit, find Z_TH if R is 15 kΩ and RL is 38 kΩ.

A. 4.69 ∠38.7° V B. 9.38 ∠38.7° V C. 12 ∠0° V D. 6 ∠0° V

A. 9.82 ∠-51.3° kΩ B. 9.38 ∠-51.3° kΩ C. 180 ∠-38.3° kΩ D. 19.2 ∠-38.3° kΩ

A. 135∠63.4° V B. 13.5∠63.4° V C. 12.2∠0° V D. 122∠0° V

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