845Electrical EngineeringMediumIn a certain low-pass filter, fc = 3.5 kHz. Its pass-band is________?A0 HzB3.5 kHzC7 kHzD0 Hz to 3.5 kHz Correct answerD. 0 Hz to 3.5 kHz ExplanationThe correct answer is 0 Hz to 3.5 kHz.