2.81 A Miller integrator incorporates an ideal op amp, a resistor R of 10 kΩ, and a capacitor C of 1 nF. A sine-wave signal is applied to its input.
(a) At what frequency (in Hz) are the input and output signals equal in amplitude?
(b) At that frequency, how does the phase of the output sine wave relate to that of the input?
(c) If the frequency is lowered by a factor of 10 from that found in (a), by what factor does the output voltage change, and in what direction (smaller or larger)?
(d) What is the phase relation between the input and output in situation (c)?
(a) 1.59 kHz; (c) increase by 10 ×