11.17 If in the circuit in Fig. 11.30(a), R2 is short-circuited, find the ideal value of Af. For the case Rs = Rid = ∞, give expressions for Ri, Ro, A, β, Af, Rin, and Rout.
Af = −1 A/A; Ri = R1; Ro = ro2, A = −μgmR1; β = −1; Af = −μgmR1/(1 + μgmR1); Rin 1/μgm; Rout μ(gmro2)R1.
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