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Electronics
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RLC Circuits and Resonance
Comments
Question
When inductive and capacitive reactance are present in the same series circuit, the magnitude of the total reactance is equal to the sum of the magnitudes of the individual reactances.
Options
A. True
B. False
Correct Answer
False
RLC Circuits and Resonance problems
Search Results
1. The resonant frequency f
o
is 19 kHz.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
2. ___ capacitors have the highest values of capacitance.
Options
A. Electrolytic
B. Ceramic
C. Plastic-film
D. Mica
Show Answer
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Discuss
Correct Answer: Electrolytic
3. If a 5 V, 60 Hz voltage is applied to a 4.7 µF capacitor, the circuit current will be ______ .
Options
A. 0.886 mA
B. 8.86 mA
C. 8.86 µA
D. 88.6 µA
Show Answer
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Discuss
Correct Answer: 8.86 mA
4. A ___ capacitor allows ac signals to pass while blocking dc signals.
Options
A. filter
B. bypass
C. decoupling
D. coupling
Show Answer
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Discuss
Correct Answer: coupling
5. The basic capacitor is made up of ___ that separates two conductive plates.
Options
A. a conductor
B. a spacer
C. a dielectric
D. an electrode
Show Answer
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Discuss
Correct Answer: a dielectric
6. The quality factor of a parallel circuit at resonance is V
C
/V
S
or V
L
/V
S
.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
7. The less selective a filter is, the steeper the slope of its curves at the cutoff frequencies.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
8. In a series RLC circuit, at above resonance the circuit is more capacitive than it is inductive.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: False
9. The bandwidth of a filter is the range of frequencies between the half-power frequencies.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
10.
With the frequency given, the circuit in the given circuit is operating above resonance.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
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