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WorksheetsFCS-Review
Total questions: 15
Worksheet time: 12mins
An ideal low-pass filter passes:
High-frequency signals
All signals equally
Low-frequency signals
Passes all frequencies equallyDC only
Laplace Transform of 2sintsint
What is the output of an inverting amplifier if Vin = 2V and gain = –5?
2V
-2V
-10V
10V
The gain of a inverting op-amp is given by:
-R2/R1
1 + R2/R1
R1/R2
R2 - R1
The Laplace Transform of e^(at) is:
1/(s + a)
s + a
1/(s - a)
s - a
A function has poles at s = −2, s=1 and s = −3, and zeros at s = −1. The order of the system is:
1
2
3
0
Given the transfer function H(s) = (s + 3)/[(s - 1)(s -2)], the poles are:
s = −3
s = −1 and −2
s = 0
s = 1 and 2
For the block diagram reduction of two blocks in parallel G1(s) and G2(s), the equivalent is:
G1(s) + G2(s)
G1(s) × G2(s)
G1(s)/G2(s)
1/[G1(s) + G2(s)]
The Barkhausen criteria for oscillators state that loop gain must be:
0
1
Infinite
Negative
A pole at s = –3 indicates:
Stable System
Marginally Stable
Unstable System
No effect in stability
A Butterworth filter is characterized by:
Sharp cutoff
Flat frequency response in passband
Oscillatory response
Narrow bandwidth
The transfer function is defined as:
Output/Input in time domain
Output/Input in frequency domain
Power/Input
Output/Power
Transfer function H(s) = Y(s)/X(s)
If H(s) = 7/(s^2+2), steady-state gain is:
0
infinite
7/2
2.5
Which type of filter has two cutoff frequencies?
Low-pass
High-pass
Band-pass
Notch
What is the formula for the closed-loop transfer function of a negative feedback system?
T(s) = G(s) + H(s)
T(s) = G(s) / [1 − G(s)H(s)]
T(s) = G(s) / [1 + G(s)H(s)]
T(s) = G(s)H(s)
