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Electrical Engineering - Passive Filters

@ : Home > Electrical Engineering > Passive Filters > General Questions

Exercise

"Nothing is impossible to a willing heart."
- (Proverb)
1. 

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

A. is 7 kHz
B. is 10 kHz
C. is 12 kHz
D. cannot be determined

2. 

An RL low-pass filter consists of a 5.6 mH coil and a 3.3 k resistor. The output voltage is taken across the resistor. The circuit's critical frequency is

A. 93.8 kHz
B. 93.8 Hz
C. 861 Hz
D. 86.12 kHz

3. 

Referring to Problem 15, what is the circuit's phase shift?

A. 99°B. 17°
C. 57°D. 5.71°

4. 

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

A. a higher resonant frequency
B. a smaller bandwidth
C. a higher impedance
D. a larger bandwidth

5. 

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

A. 0 V
B. 15 V
C. 10.60 V
D. 21.21 V




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