Passive Filters

Q:

An RL low-pass filter consists of a 5.6 mH coil and a 3.3 k resistor. The output voltage is taken across the resistor. The circuit's critical frequency is

(a) :  93.8 kHz
(b) :  93.8 Hz
(c) :  861 Hz
(d) :  86.12 kHz
Answer:  93.8 kHz
Explanation:  

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