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1. |
Neglecting Channel Length Modulation, what is the output impedance of the following C.S. stage? |
A. | R4 |
B. | R4 || R2 |
C. | R4 || (R2 + R3) |
D. | R4 || [(R2 + R3) || R1] |
Answer» B. R4 || R2 | |