## Answer & Solution

**Option B**

1.

A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.

2.

The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.

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.

V_{out} = 500 mV and V_{in} = 1.3 V. The ratio $$\frac{{{{\text{V}}_{{\text{out}}}}}}{{{{\text{V}}_{{\text{in}}}}}}\,$$ expressed in dB is

5.

A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?

6.

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

7.

Critical frequencies are also called -3 dB frequencies.

8.

A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.

9.

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

10.

An RC high-pass filter consists of an 820 Ω resistor. What is the value of C so that Xc is ten times less than Rat an input frequency of 12 kHz?