3. Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.
A. 43.7 less-than 68.6° ohm
B. 12.9 less-than 68.6° ohm
C. 43.7 less-than 21.4° ohm
D. 129 less-than 21.4° ohm
3. Referring to the given circuit, find ZTH for the part of the circuit that is external to RL.
A. 43.7 less-than 68.6° ohm
B. 12.9 less-than 68.6° ohm
C. 43.7 less-than 21.4° ohm
D. 129 less-than 21.4° ohm