Question 1

Figure 5 Response curve for three different filters
-Refer to Figure 5. The response labeled "A" represents a

Accepted Answer

A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above 
A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above C

Question 2

Figure 3
-Refer to Figure 3. An advantage of this type of filter is that it

Accepted Answer

A) the low and high- pass outputs are equivalent to a 4- pole filter 
B) can be optimized for all three outputs 
C) the bandpass output can have a very high Q 
D) all of the above 
A) the low and high- pass outputs are equivalent to a 4- pole filter 
B) can be optimized for all three outputs 
C) the bandpass output can have a very high Q 
D) all of the above C

Question 3

Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. The fc for the first section is

Accepted Answer

A) 800 Hz 
B) 160 Hz 
C) 80 Hz 
D) 1.6 kHz 
A) 800 Hz 
B) 160 Hz 
C) 80 Hz 
D) 1.6 kHz B

Question 4

The bandwidth of a bandpass filter is measured at

Accepted Answer

A) the -2 dB frequencies 
B) the -6 dB frequencies 
C) the -4 dB frequencies 
D) none of the above 
A) the -2 dB frequencies 
B) the -6 dB frequencies 
C) the -4 dB frequencies 
D) none of the above

Question 5

Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. Assume the capacitors in section 1 are made larger. This change will

Accepted Answer

A) decrease the bandwidth 
B) increase the bandwidth 
C) not affect the bandwidth 
A) decrease the bandwidth 
B) increase the bandwidth 
C) not affect the bandwidth

Question 6

A basic one- pole RC low- pass filter has fc = 5.9 kHz using a 0.01 µF capacitor. The resistor value is

Accepted Answer

A) 2.7 k▲ 
B) 1.6 k▲ 
C) 16 k▲ 
D) 270 ▲ 
A) 2.7 k▲ 
B) 1.6 k▲ 
C) 16 k▲ 
D) 270 ▲

Question 7

Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. The circuit is a

Accepted Answer

A) high- pass filter 
B) low- pass filter 
C) notch filter 
D) bandpass filter 
A) high- pass filter 
B) low- pass filter 
C) notch filter 
D) bandpass filter

Question 8

A single- pole filter cannot be used as a notch filter.

Accepted Answer

A) True 
 B)False

Question 9

Assume a high- pass filter and a low- pass filter are cascaded to form a band- pass filter. The upper cutoff frequency will be determined by

Accepted Answer

A) the high- pass filter 
B) answer depends on the order of the filters 
C) the low- pass filter 
D) none of the above 
A) the high- pass filter 
B) answer depends on the order of the filters 
C) the low- pass filter 
D) none of the above

Question 10

A low- pass filter has a critical frequency of 10 kHz. The bandpass is

Accepted Answer

A) 20 kHz 
B) 5.0 kHz 
C) 15 kHz 
D) 10 kHz 
A) 20 kHz 
B) 5.0 kHz 
C) 15 kHz 
D) 10 kHz

Question 11

The best response to use for pulses is

Accepted Answer

A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above 
A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above

Question 12

Figure 5 Response curve for three different filters
-Refer to Figure 5. The response labeled "B" represents a

Accepted Answer

A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above 
A) Butterworth response 
B) Bessel response 
C) Chebyshev response 
D) none of the above

Question 13

The damping factor, DF, is determined by the number of poles in a filter.

Accepted Answer

A) True 
 B)False

Question 14

Figure 3
-Refer to Figure 3. This type of filter is called a

Accepted Answer

A) biquad filter 
B) Sallen- Key filter 
C) multiple- feedback filter 
D) state- variable filter 
A) biquad filter 
B) Sallen- Key filter 
C) multiple- feedback filter 
D) state- variable filter

Question 15

Figure 4 A test of a filter using an oscilloscope
-Refer to Figure 4. The block with the ? on it represents a

Accepted Answer

A) low- pass filter 
B) impedance matching circuit 
C) detector 
D) amplifier 
A) low- pass filter 
B) impedance matching circuit 
C) detector 
D) amplifier

Question 16

Figure 2 Note that the capacitors have different values.
-Refer to Figure 2. The fc for the second section is

Accepted Answer

A) 1.6 kHz 
B) 800 Hz 
C) 80 Hz 
D) 160 Hz 
A) 1.6 kHz 
B) 800 Hz 
C) 80 Hz 
D) 160 Hz

Question 17

Figure 4 A test of a filter using an oscilloscope
-Refer to Figure 4. The oscilloscope needs to

Accepted Answer

A) generate an internal time base 
B) use normal triggering 
C) use external triggering 
D) be in X- Y mode 
A) generate an internal time base 
B) use normal triggering 
C) use external triggering 
D) be in X- Y mode

Question 18

A biquad filter has both low- pass and high- pass outputs.

Accepted Answer

A) True 
 B)False

Question 19

Figure 1 Stage 1: DF = 1.848 and RS1U1B11S1U1B0/RS1U1B12 S1U1B0= 0.152; stage 2: DF = 0.765 and RS1U1B13S1U1B0/RS1U1B14 S1U1B0=1.235.
-Refer to Figure 1. The type of filter is a

Accepted Answer

A) low- pass Sallen- Key filter 
B) high- pass Sallen- Key filter 
C) low- pass biquad filter 
D) high- pass biquad filter 
A) low- pass Sallen- Key filter 
B) high- pass Sallen- Key filter 
C) low- pass biquad filter 
D) high- pass biquad filter

Question 20

Figure 1 Stage 1: DF = 1.848 and RS1U1B11S1U1B0/RS1U1B12 S1U1B0= 0.152; stage 2: DF = 0.765 and RS1U1B13S1U1B0/RS1U1B14 S1U1B0=1.235.
-Refer to Figure 1. The ideal roll- off rate is

Accepted Answer

A) -120 dB/decade 
B) -80 dB/decade 
C) -40 dB/decade 
D) -20 dB/decade 
A) -120 dB/decade 
B) -80 dB/decade 
C) -40 dB/decade 
D) -20 dB/decade

Figure 5 Response curve for three different filters -Refer to Figure 5. The response labeled "A" represents a

Figure 3 -Refer to Figure 3. An advantage of this type of filter is that it

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The fc for the first section is

The bandwidth of a bandpass filter is measured at

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. Assume the capacitors in section 1 are made larger. This change will

A basic one- pole RC low- pass filter has fc = 5.9 kHz using a 0.01 µF capacitor. The resistor value is

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The circuit is a

A single- pole filter cannot be used as a notch filter.

Assume a high- pass filter and a low- pass filter are cascaded to form a band- pass filter. The upper cutoff frequency will be determined by

A low- pass filter has a critical frequency of 10 kHz. The bandpass is

The best response to use for pulses is

Figure 5 Response curve for three different filters -Refer to Figure 5. The response labeled "B" represents a

The damping factor, DF, is determined by the number of poles in a filter.

Figure 3 -Refer to Figure 3. This type of filter is called a

Figure 4 A test of a filter using an oscilloscope -Refer to Figure 4. The block with the ? on it represents a

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The fc for the second section is

Figure 4 A test of a filter using an oscilloscope -Refer to Figure 4. The oscilloscope needs to

A biquad filter has both low- pass and high- pass outputs.

Figure 1 Stage 1: DF = 1.848 and R₁/R₂= 0.152; stage 2: DF = 0.765 and R₃/R₄=1.235. -Refer to Figure 1. The type of filter is a

Figure 1 Stage 1: DF = 1.848 and R₁/R₂= 0.152; stage 2: DF = 0.765 and R₃/R₄=1.235. -Refer to Figure 1. The ideal roll- off rate is

Introduction to Semiconductors

Diodes and Applications

Special-Purpose Diodes

Bipolar Junction Transistors

Transistor Bias Circuits

BJT Amplifiers

BJT Power Amplifiers

Field-Effect Transistors Fets

Fet Amplifiers and Switching Circuits

Amplifier Frequency Response

Thyristors

The Operational Amplifier

Basic Op-Amp Circuits

Special-Purpose Integrated Circuits

Oscillators

Voltage Regulators

Communication Devices and Methods

Filters

Exam 15: Active Filters

Figure 5 Response curve for three different filters -Refer to Figure 5. The response labeled "A" represents a

Figure 3 -Refer to Figure 3. An advantage of this type of filter is that it

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The fc for the first section is

The bandwidth of a bandpass filter is measured at

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. Assume the capacitors in section 1 are made larger. This change will

A basic one- pole RC low- pass filter has fc = 5.9 kHz using a 0.01 µF capacitor. The resistor value is

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The circuit is a

A single- pole filter cannot be used as a notch filter.

Assume a high- pass filter and a low- pass filter are cascaded to form a band- pass filter. The upper cutoff frequency will be determined by

A low- pass filter has a critical frequency of 10 kHz. The bandpass is

The best response to use for pulses is

Figure 5 Response curve for three different filters -Refer to Figure 5. The response labeled "B" represents a

The damping factor, DF, is determined by the number of poles in a filter.

Figure 3 -Refer to Figure 3. This type of filter is called a

Figure 4 A test of a filter using an oscilloscope -Refer to Figure 4. The block with the ? on it represents a

Figure 2 Note that the capacitors have different values. -Refer to Figure 2. The fc for the second section is

Figure 4 A test of a filter using an oscilloscope -Refer to Figure 4. The oscilloscope needs to

A biquad filter has both low- pass and high- pass outputs.

Figure 1 Stage 1: DF = 1.848 and R1/R2 = 0.152; stage 2: DF = 0.765 and R3/R4 =1.235. -Refer to Figure 1. The type of filter is a

Figure 1 Stage 1: DF = 1.848 and R1/R2 = 0.152; stage 2: DF = 0.765 and R3/R4 =1.235. -Refer to Figure 1. The ideal roll- off rate is

Introduction to Semiconductors

Diodes and Applications

Special-Purpose Diodes

Bipolar Junction Transistors

Transistor Bias Circuits

BJT Amplifiers

BJT Power Amplifiers

Field-Effect Transistors Fets

Fet Amplifiers and Switching Circuits

Amplifier Frequency Response

Thyristors

The Operational Amplifier

Basic Op-Amp Circuits

Special-Purpose Integrated Circuits

Oscillators

Voltage Regulators

Communication Devices and Methods

Filters

Figure 1 Stage 1: DF = 1.848 and R₁/R₂= 0.152; stage 2: DF = 0.765 and R₃/R₄=1.235. -Refer to Figure 1. The type of filter is a

Figure 1 Stage 1: DF = 1.848 and R₁/R₂= 0.152; stage 2: DF = 0.765 and R₃/R₄=1.235. -Refer to Figure 1. The ideal roll- off rate is