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RLC Circuits and Resonance problems
1. What is the range between
f
1
and
f
2
of an
RLC
circuit that resonates at 150 kHz and has a
Q
of 30?
Options
A. 100.0 kHz to 155.0 kHz
B. 147.5 kHz to 152.5 kHz
C. 4500 kHz to 295.5 kHz
D. 149,970 Hz to 150,030 Hz
Show Answer
Scratch Pad
Discuss
Correct Answer: 147.5 kHz to 152.5 kHz
2. When a parallel circuit resonates it is said to:
Options
A. flywheel
B. oscillate
C. both of the above
D. none of the above
Show Answer
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Discuss
Correct Answer: both of the above
3. How much current will flow in a series
RLC
circuit when
V
T
= 100 V,
X
L
= 160 Ω,
X
C
= 80 Ω, and
R
= 60 Ω?
Options
A. 1 A
B. 1 mA
C. 6.28 A
D. 10 A
Show Answer
Scratch Pad
Discuss
Correct Answer: 1 A
4.
What is the current through the capacitor in the given circuit?
Options
A. 3.5 mA
B. 5.5 mA
C. 9 mA
D. 11.4 mA
Show Answer
Scratch Pad
Discuss
Correct Answer: 3.5 mA
5. In a parallel RLC circuit, which value may always be used as a vector reference?
Options
A. current
B. reactance
C. resistance
D. voltage
Show Answer
Scratch Pad
Discuss
Correct Answer: voltage
6. At resonance, the term bandwidth includes all frequencies that allow what percentage of maximum current to flow?
Options
A. 50
B. 62.3
C. 70.7
D. 95.3
Show Answer
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Discuss
Correct Answer: 70.7
7. What is the quality factor?
Options
A. 999
B. 223
C. 2.2
D. 0.99
Show Answer
Scratch Pad
Discuss
Correct Answer: 2.2
8. What is the total current?
Options
A. 15.6 mA
B. 17.8 mA
C. 21.9 mA
D. 26.0 mA
Show Answer
Scratch Pad
Discuss
Correct Answer: 15.6 mA
9. If the bandwidth of a filter increases:
Options
A. Q decreases
B. the roll-off rate increases
C. the half-power frequency decreases
D. the center frequency decreases
Show Answer
Scratch Pad
Discuss
Correct Answer: Q decreases
10. What would be the power factor for an RLC circuit that acts inductively?
Options
A. +90 degrees leading
B. one
C. zero
D. ?90 degrees lagging
Show Answer
Scratch Pad
Discuss
Correct Answer: zero
First
2
3
4
5
6
7
8
9
More in Electronics:
Alternating Current and Voltage
Alternating Current vs Direct Current
Analog and Digital Converters
Analog to Digital
Arithmetic Operations and Circuits
Basic Op-Amp Circuits
Bipolar Junction Transistors (BJT)
Capacitors
Combinational Logic Circuits
Computer Hardware and Software
Diodes and Applications
Field Effect Transistors (FET)
Flip-Flops and Timers
Inductors
Logic Circuit Simplification
Logic Gates
Magnetism and Electromagnetism
Measurement, Conversion and Control
Number Systems and Codes
Ohm's Law
Operational Amplifiers
Parallel Circuits
Programmable Logic Devices (PLD)
Quantities and Units
RC Circuits
Resistance and Power
RL Circuits
RLC Circuits and Resonance
Semiconductor Memory
Semiconductor Principles
Sequential Logic Circuits
Series-Parallel Circuits
Series Circuits
Special-Purpose Op-Amp Circuits
Standard Logic Devices (SLD)
Testing and Troubleshooting
Thyristors and Tranducers
Time Response of Reactive Circuits
Transformers
Transistors and Applications
Voltage and Current
