Question

For the circuit given below, the cut-off frequency of the filter is ________________

(a) 5283 kHz

(b) 5283 Hz

(c) 2653.1 kHz

(d) 2653.1 Hz

I have been asked this question in class test.

My doubt stems from Ideal LPF, HPF, BPF and BSF Characteristics topic in division Signal Transmission Through Linear Systems of Signals and Systems

Answer 1

Right answer is (d) 2653.1 Hz

Best explanation: We know that, F = \(\frac{1}{2π×R×C}\)

Where, R = 1200 Ω, C1 = 0.05 × 10^-6 F

∴ F = \(\frac{1}{2π×1200×C}\)

= \(\frac{1}{2π×60×10^{-6}}\)

= \(\frac{10^6}{2π×60}\) = 2653.1 Hz.