5. Each RC circuit in an op-amp (a) causes the gain to roll off at -6dB/octave (b) causes the gain to roll off at -20 dB/decade (c) reduces the midrange gain by 3 dB (d) answers (a) and (b) 6. If a certain op-amp has a midrange open-loop gain of 200,000 and a unity-gain frequency of 5 MHz, the gain-bandwidth product is (a) 200,000 Hz (b) 5,000,000 Hz (c) 1 x 1012 Hz (d) not determinable from the information 7. The bandwidth of an ac amplifier having a lower critical frequency of 1 kHz and an upper critical frequency of 10 kHz is (a) 1 kHz (b) 9 kHz (c) 10 kHz (d) 11 kHz Increased 8. The bandwidth of a dc amplifier having an upper critical frequency of 100 kHz is (a) 100 kHz (b) unknown (c) infinity (d) 0 kHz qme-qo no to nicy cool-sq ups tealho rawol s mont олвирай the 1990 sit of sH 0 mon 9. If a certain op-amp has a closed-loop gain of 20 and an upper critical frequency of 10 MHz, the gain-bandwidth product is (a) 200 MHz (b) 10 MHz (c) the unity-gain frequency (d) answers (a) and (c) (a) bns (d) youaupant isoubo qu yoneuped Baloo :) (d) onsupan daton sea (a)