The op-amp in the filter shown in Figure 1 is connected as a : (a) Noninverting amplifier (b)Inverting amplifier (c) Buffer (d)Voltage follower In Figure 1, the closed-loop voltage gain in the passband of the filter is given as: (a)
A_(cl(NI))=1+(R_(1))/(R_(2))
(c)
A_(cl(VF))=1
(b)
A_(cl(I))=-(R_(1))/(R_(2))
(d) Infinite