Passive Filters Online Test – Multiple Choice Questions and Answers

1. 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?

 
 
 
 

2. At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V.the filter’s bandwidth is

 
 
 
 

3. In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency

 
 
 
 

4. The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. In a series resonant band-pass filter, a lower value of Q results in

 
 
 
 

8. In a certain low-pass filter, fc = 3.5 kHz. Its passband is

 
 
 
 

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