alleryStart learning →Cutoff frequency of RC low-pass filter:
ARC²
BRC
Cf_c = 1/(2πRC)
DR/C
Answer & Solution
Correct answer: C. f_c = 1/(2πRC)
**Single-pole RC LP:** f_c = 1/(2πRC).
At f_c, output attenuates -3 dB (half power).
**Roll-off:** -20 dB/decade beyond.
**Phase:** -45° at f_c, approaches -90° at high f.
**High-pass:** just swap R and C, same f_c formula.
Keep practising GATE ECE — Core
Browse all GATE ECE — Core questions for GATE ECE, or explore more Electronics & Communication topics.
Related questions
For n-bit ADC with full-scale V_FS, resolution (LSB) is:Wave equation in vacuum (Maxwell):VSWR (Voltage Standing Wave Ratio) for matched load (R_L = Z_0):Characteristic impedance of a lossless transmission line:Shannon channel capacity:FM (frequency modulation) varies:In AM (amplitude modulation), modulating signal varies:Transfer function 1/(s² + 2s + 5) has poles at: