RLC Circuits and Resonance - General Questions Online Exam Quiz
RLC Circuits and Resonance - General Questions GK Quiz. Question and Answers related to RLC Circuits and Resonance - General Questions. MCQ (Multiple Choice Questions with answers about RLC Circuits and Resonance - General Questions
A 10 resistor, a 90 mH coil, and a 0.015 F capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below f r is
Options
A : 1,616
B : 161
C : 3,387
D : 1,771
In a series RLC circuit that is operating above the resonant frequency, the current
Options
A : lags the applied voltage
B : leads the applied voltage
C : is in phase with the applied voltage
D : is zero
A 15 resistor, a 220 H coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
Options
A : 138 MHz
B : 10,866 Hz
C : 1,907 Hz
D : 138 kHz
A resistor of 3 k , a 0.05 F capacitor, and a 120 mH coil are in series across a 5 kHz, 20 V ac source. What is the impedance, expressed in polar form?
Options
A : 636
B : 3,769
C : 433
D : 4,337
A 12 resistor, a 40 F capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
Options
A : 28.1 Hz
B : 281 Hz
C : 2,810 Hz
D : 10 kHz
The impedance at the resonant frequency of a series RLC circuit with L = 20 mH, C = 0.02 F, and R W = 90 is
Options
A : 0
B : 90
C : 20 k
D : 40 k
A 6.8 k resistor, a 7 mH coil, and a 0.02 F capacitor are in parallel across a 17 kHz ac source. The coil's internal resistance, R W , is 30 . The equivalent parallel resistance, R p (eq), is
Options
A : 1,878
B : 18,780
C : 18,750
D : 626
Referring to Problem 20, what is the total parallel resistance ( R p(tot) )?
Options
A : 4.99
B : 499
C : 4,992
D : 6,800
A 200 resistor, a coil with 30 of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance
Options
A : is 230
B : is 170
C : is 200
D : cannot be determined
Referring to Problem 8, the total current is
Options
A : 1.5 A
B : 573 mA
C : 5.73 A
D : 1.19 A
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