Use Example 183 A low pass RC filter has R 220 ohm and C 1

Use Example 18-3; A low pass RC filter has R = 220 ohm and C = 12 nanofarad. Find the fc = Hz Use Example 18-5; A high pass RC filter has R = 15000 ohm and C = 12 picofarad. Find the fc = k Hz

Solution

1) cutoff frequency for a low pass filter= 1/(2×pi×R×C)

fc=1/(2×3.14×220×12×10^-9)=60.32 KHz

2)

cutoff frequency for a high pass filter= 1/(2×pi×R×C)

fc=1/(2×3.14×15000×12×10^-12)=884.2 KHz