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Basic Filters
True or False
Mark each of the statements below True or False.
1 .
In an
RC
low-pass filter, the output voltage is taken across the resistor and the output lags the input voltage.
[
Hint
]
True
False
2 .
In an
RL
low-pass filter, the output voltage is taken across the inductor and the output lags the input.
[
Hint
]
True
False
3 .
In an
RC
high-pass filter, the output is taken across the resistor and the output leads the input.
[
Hint
]
True
False
4 .
In an
RL
high-pass filter, the output is taken across the inductor and the output leads the input.
[
Hint
]
True
False
5 .
The roll-off rate of a basic
RC
or
RL
filter is 20 dB per decade.
[
Hint
]
True
False
6 .
A band-pass filter rejects frequencies between the lower and upper critical frequencies and passes all others.
[
Hint
]
True
False
7 .
A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.
[
Hint
]
True
False
8 .
The bandwidth of a resonant filter is determined by the quality factor (
Q
) of the circuit and the resonant frequency.
[
Hint
]
True
False
9 .
Critical frequencies are also called -3 dB frequencies.
[
Hint
]
True
False
10 .
The output voltage is 63.3% of its maximum at the critical frequencies.
[
Hint
]
True
False
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