Filter Consists Of

By Aina Parasher|Updated : July 19th, 2022

An RL high-pass filter consists of a 470 Ω resistor and a 600 mH coil. The output is taken across the coil. The circuit's critical frequency is-

  1. 125 Hz
  2. 1,250 Hz
  3. 564 Hz
  4. 5,644 Hz

Answer: A. 125 Hz

An RL high-pass filter consists of a 470 Ω resistor and a 600 mH coil. The output is taken across the coil. The circuit's critical frequency is 125 Hz.

Solution

Filter consists of-

Resistor (R) = 470 Ω

Inductance (L) = 600 mH

At critical frequency,

XL=R

2fπL=R

f=R/2πL

f=470/(2×π×600×10-3)

f=125 Hz

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