5555555555 62. An RC high-pass filter consists of an 820 Ω resistor. What is the value of C so that Xc is ten times less than R at an input frequency of 12 kHz? (a) 81 μF (b) 161 μF (c) 0.161 μF (d) 220 μF
5555555555 58. An RC high-pass filter consists of a 0.2 μF capacitor and a 220 Ω resistor. The output is taken across the resistor. The circuit's critical frequency is ________. (a) 723 Hz (b) 7,234 Hz (c) 362 Hz (d) 3,617 Hz
5555555555 52. An RC low-pass filter consists of a 120 Ω resistor and a 0.002 μF capacitor. The output is taken across the capacitor. The circuit's critical frequency is ________. (a) 333 kHz (b) 633 kHz (c) 331 kHz (d) 60 kHz