Engineering, 14.10.2019 17:30, alma79

Fig. 1 shows an op amp with a negative feedback path.
assume that μ = 800v/v, rs = 20kω, rid = 1000kω,
ro = 10kω, rl = 2kω, r1 = 2kω and r2 = 1kω.
(a) show the expression and calculate the value of
loop gain by breaking the loop at xx’. you must draw
the circuits after breaking the loop. (10%)
(b) if μ increases by 15%, what’s the corresponding increase
in the closed-loop gain? (6%)

Fig. 1 shows an op amp with a negative feedback path. assume that μ = 800v/v, rs = 20kω, rid =

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Fig. 1 shows an op amp with a negative feedback path.
assume that μ = 800v/v, rs = 20kω, rid =...