Chapter 10, Problem 10.104P

a)

To determine

The expression for the small-signal voltage gain $\frac{V_0}{V_{sig}}$ , the mid-band gain $A_m$ , and the lower 3-dB frequency $f_L$ .

b)

To determine

A certain factor that includes Re reduces the magnitude of $A_M$ .

c)

To determine

Including ${\mathrm{R}}_e$ reduces $f_L$ by the same factor as in (b) and thus one can use ${\mathrm{R}}_e$ to trade off gain for bandwidth.

d)

To determine

The value of ${\text{A}}_m$ , $f_L$ with ${\mathrm{R}}_e=0$ and ${\mathrm{R}}_e$ that lowers $f_L$ by a factor of 10, the value of new gain