36. 由兩顆相同的MOSFET構成的疊接放大器，兩顆電晶體的小信號轉移電導 g_m=0.5mA/V 且汲極電阻 R_D=40kΩ，此放大器的電壓增益 A_v 為何？ (A) 20 (B)20 (C) 10 (D)10

5. An enzyme shows strong substrate specificity, yet mutation of a single active‑site residue leads to a dramatic increase in catalytic rate but a decrease in substrate affinity. Which interpretation best fits this observation? (A)The mutation stabilizes the enzyme–substrate complex but destabilizes the transition state (B)The mutation decreases the activation energy but weakens binding interactions in the active site (C)The mutation increases both kcat and KM by stabilizing the transition state (D)The mutation eliminates a key catalytic group but improves substrate recognition

36. 由兩顆相同的MOSFET構成的疊接放大器，兩顆電晶體的小信號轉移電導 $g_m=0.5mA/V$ 且汲極電阻 $R_D=40k\Omega$，此放大器的電壓增益 $A_v$ 為何？
(A) 20
(B)20
(C) 10
(D)10

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相關試卷

36. 由兩顆相同的MOSFET構成的疊接放大器，兩顆電晶體的小信號轉移電導 $g_m=0.5mA/V$ 且汲極電阻 $R_D=40k\Omega$，此放大器的電壓增益 $A_v$ 為何？(A) 20(B)20(C) 10(D)10

相關試題

相關試卷

36. 由兩顆相同的MOSFET構成的疊接放大器，兩顆電晶體的小信號轉移電導 $g_m=0.5mA/V$ 且汲極電阻 $R_D=40k\Omega$，此放大器的電壓增益 $A_v$ 為何？
(A) 20
(B)20
(C) 10
(D)10