Q.1

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

  • a higher resonant frequency
  • a smaller bandwidth
  • a higher impedance
  • a larger bandwidth
Q.2

In an RL low-pass filter, the output voltage is taken across the inductor and the output lags the input.

  • True
  • False
Q.3

In an RL high-pass filter, the output is taken across the inductor and the output leads the input.

  • True
  • False
Q.4

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

  • 0 V
  • 15 V
  • 10.60 V
  • 21.21 V
Q.5

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

  • True
  • False
Q.6

In an RC high-pass filter, the output is taken across the resistor and the output leads the input.

  • True
  • False
Q.7

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

  • True
  • False
Q.8

Critical frequencies are also called –3 dB frequencies.

  • True
  • False
Q.9

The output voltage is 63.of its maximum at the critical frequencies.

  • True
  • False
Q.10

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

  • True
  • False
Q.11

A parallel resonant band-pass filter consists of a resistor in series with a parallel network made up of amH coil and a 0.F capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of. What is the center frequency of the filter?

  • 459 Hz
  • 4,591 Hz
  • 999 Hz
  • 2,176 Hz
Q.12
In a certain low-pass filter, fc = 3.5 kHz. Its passband is
  • 0 Hz to 3.5 kHz
  • 0 Hz
  • 3.5 kHz
  • 7 kHz
Q.13
Referring to Problemif the input voltage is a 6 V sine wave with a dc level ofV, what is the output voltage magnitude?
  • 6 V
  • 597 mV
  • 5.97 V
  • 0 V
Q.14
A parallel resonant band-pass filter consists of a 6.8 Ω resistor in series with a parallel network made up of an 8 µH coil and apF capacitor. The output is taken across the capacitor/coil. Assume RW = 0 Ω. What is the center frequency of the filter?
  • 5.14 MHz
  • 514 kHz
  • 5.03 MHz
  • 503 kHz
Q.15
A parallel resonant band-pass filter consists of aΩ resistor in series with a parallel network made up of amH coil and a 0.µF capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance ofΩ. What is the center frequency of the filter?
  • 459 Hz
  • 4,591 Hz
  • 999 Hz
  • 2,176 Hz
Q.16
In an RL low-pass filter, the output voltage is taken across the inductor and the output lags the input.
  • True
  • False
Q.17
In a certain low-pass filter, fc = 3.5 kHz. If the input voltage is a 6 V sine wave with a dc level ofV, what is the output voltage magnitude?
  • 0 V
  • 5.97 V
  • 6 V
  • 597 mV
Q.18
In an RL high-pass filter, the output is taken across the inductor and the output leads the input.
  • True
  • False
Q.19
In an RC low-pass filter, the output voltage is taken across the resistor and the output lags the input voltage.
  • True
  • False
Q.20
An RL high-pass filter consists of aΩ resistor and amH coil. The output is taken across the coil. The circuit's critical frequency is
  • 125 Hz
  • 1,250 Hz
  • 564 Hz
  • 5,644 Hz
0 h : 0 m : 1 s