Passive Filters Online Test – Multiple Choice Questions and Answers 1. In a certain low-pass filter, fc = 3.5 kHz. Its passband is 3.5 kHz 0 Hz 0 Hz to 3.5 kHz 7 kHz 2. The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is 10.60 V 0 V 21.21 V 15 V 3. In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency is 7 kHz is 10 kHz is 12 kHz cannot be determined 4. In a series resonant band-pass filter, a lower value of Q results in a higher impedance a smaller bandwidth a higher resonant frequency a larger bandwidth 5. A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is 18 V peak-to-peak zero 9 V peak-to-peak 12.74 V peak-to-peak 6. The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is 12.73 V peak-to-peak 18 V peak-to-peak 9 V peak-to-peak zero 7. In a certain low-pass filter, fc = 3.5 kHz.if the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude? 0 V 5.97 V 6 V 597 mV 8. At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V.the filter’s bandwidth is 530 Hz 106 Hz 11.5 Hz 53 Hz Loading … Question 1 of 8
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