engineering physics MCQ #1889

The cutoff frequency of an RC low-pass filter is given by f_c = 1 / (2πRC). What happens to f_c if R is doubled?

engineering physics MCQ #1889

  1. Question 1

    Q1. The cutoff frequency of an RC low-pass filter is given by f_c = 1 / (2πRC). What happens to f_c if R is doubled?

    • A) f_c is halved
    • B) f_c is doubled
    • C) f_c remains the same
    • D) f_c becomes zero

    Answer: f_c is halved

    Explanation: f_c is inversely proportional to R, so doubling R halves f_c.