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

• 1. is 7 kHz
• 2. is 10 kHz
• 3. is 12 kHz
• 4. cannot be determined

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

• 1. 530 Hz
• 2. 106 Hz
• 3. 11.5 Hz
• 4. 53 Hz