The Following Section consists of Multiple Choice Questions on RLC Circuits and Resonance.
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RLC Circuits and Resonance MCQ
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Question 1 of 7
1. Question
1 pointsIn a series RLC circuit that is operating above the resonant frequency, the current
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Question 2 of 7
2. Question
1 pointsIf the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
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Question 3 of 7
3. Question
1 pointsA resonant circuit has a lower critical frequency of 7 kHz and an upper critical frequency of 13 kHz. The bandwidth of the circuit is
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Question 4 of 7
4. Question
1 pointsIf the value of C in a series RLC circuit is decreased, the resonant frequency
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Question 5 of 7
5. Question
1 pointsTo tune a parallel resonant circuit to a higher frequency, the capacitance should be
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Question 6 of 7
6. Question
1 pointsIn a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is
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Question 7 of 7
7. Question
1 pointsA certain series resonant circuit has a bandwidth of 2 kHz. If the existing coil is replaced with one having a higher value of Q, the bandwidth will
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RLC Circuits and Resonance MCQ 2
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Question 1 of 20
1. Question
1 pointsWhat is the applied voltage for a series RLC circuit when IT = 3 mA, VL = 30 V, VC = 18 V, and R = 1000 ohms?
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Question 2 of 20
2. Question
1 pointsIn a parallel RLC circuit, which value may always be used as a vector reference?
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Question 3 of 20
3. Question
1 pointsHow much current will flow in a 100 Hz series RLC circuit if VS = 20 V, RT = 66 ohms, and XT = 47 ohms?
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Question 4 of 20
4. Question
1 pointsWhat is the Q (Quality factor) of a series circuit that resonates at 6 kHz, has equal reactance of 4 kilo-ohms each, and a resistor value of 50 ohms?
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Question 5 of 20
5. Question
1 pointsWhat is the range between f1 and f2 of an RLC circuit that resonates at 150 kHz and has a Q of 30?
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Question 6 of 20
6. Question
1 pointsWhat effect will a parallel tank have upon final filter current?
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Question 7 of 20
7. Question
1 pointsWhen a parallel circuit resonates it is said to:
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Question 8 of 20
8. Question
1 pointsSeries RLC voltage or impedance totals must be calculated by:
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Question 9 of 20
9. Question
1 pointsWhen XC = XL the circuit:
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Question 10 of 20
10. Question
1 pointsWhen a full band of frequencies is allowed to pass through a filter circuit to the output, the resonant circuit is called a:
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Question 11 of 20
11. Question
1 pointsAt resonance, the term bandwidth includes all frequencies that allow what percentage of maximum current to flow?
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Question 12 of 20
12. Question
1 pointsWhat is the true power consumed in a 30 V series RLC circuit if Z = 20 ohms and R = 10 ohms?
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Question 13 of 20
13. Question
1 pointsWhat is the current phase angle for a parallel RLC circuit when IL = 15.3 A, IC = 0.43 A, and IR = 3.5 A?
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Question 14 of 20
14. Question
1 pointsAt any resonant frequency, what voltage is measured across the two series reactive components?
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Question 15 of 20
15. Question
1 pointsAt any resonant frequency, what net voltage is measured across the two series reactive components?
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Question 16 of 20
16. Question
1 pointsIf the bandwidth of a filter increases:
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Question 17 of 20
17. Question
1 pointsSeries RLC impedance or voltage totals must always be calculated by
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Question 18 of 20
18. Question
1 pointsWhat is the total impedance of a 60 Hz series RLC circuit when XL = 7.5 ohms, XC = –265.3 ohms, and R = 33 ohms?
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Question 19 of 20
19. Question
1 pointsWhat is the high cutoff frequency for an RLC circuit that resonates at 2000 Hz and has a bandwidth of 250 Hz?
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Question 20 of 20
20. Question
1 pointsCurrent in a series RLC circuit may always be used as:
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RLC Circuits and Resonance MCQ 3
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Question 1 of 5
1. Question
1 pointsWhat is the approximate phase angle in a series RLC circuit when VC = 117 V, VR = 14.5 V, and VL = 3.3 V?
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Question 2 of 5
2. Question
1 pointsWhich statement best describes reactance in a series RLC circuit?
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Question 3 of 5
3. Question
1 pointsWhat is the band pass (F1 – F2) of an RLC filter that resonates at 150 kHz and has a coil Q of 30?
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Question 4 of 5
4. Question
1 pointsWhat would be the power factor for an RLC circuit that acts inductively?
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Question 5 of 5
5. Question
1 pointsVoltage lags current in an RLC circuit when it acts:
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