A resistor of 3 kΩ, a 0.05 µF 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?
A resistor of 3 kΩ, a 0.05 µF 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?
A series resonant circuit is commonly called a tank circuit.
A series resonant circuit is commonly called a tank circuit.
At series resonance, the inductive reactance and capacitive reactance are never equal.
At series resonance, the inductive reactance and capacitive reactance are never equal.
If the value of C in a series RLC circuit is decreased, the resonant frequency increases
If the value of C in a series RLC circuit is decreased, the resonant frequency increases
The impedance at the resonant frequency of a series RLC circuit with L = 20 mH, C = 0.02 µF, and RW = 90 Ω is
The impedance at the resonant frequency of a series RLC circuit with L = 20 mH, C = 0.02 µF, and RW = 90 Ω is
A 12 Ω resistor, a 40 µF capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
A 12 Ω resistor, a 40 µF capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is
The quality factor (Q) is the ratio of true power to apparent power.
The quality factor (Q) is the ratio of true power to apparent power.
A lower Q produces a narrower bandwidth.
A lower Q produces a narrower bandwidth.
A 24 Ω resistor, an inductor with a reactance of 120 Ω, and a capacitor with a reactance of 120 Ω are in series across a 60 V source. The circuit is at resonance. The voltage across the inductor is
A 24 Ω resistor, an inductor with a reactance of 120 Ω, and a capacitor with a reactance of 120 Ω are in series across a 60 V source. The circuit is at resonance. The voltage across the inductor is
A resonant circuit has a lower critical frequency of 7 kHz and an upper critical frequency of 13 kHz. The bandwidth of the circuit is
A resonant circuit has a lower critical frequency of 7 kHz and an upper critical frequency of 13 kHz. The bandwidth of the circuit is
A 10 Ω resistor, a 90 mH coil, and a 0.015 µF capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is
A 10 Ω resistor, a 90 mH coil, and a 0.015 µF capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is
In a series RLC circuit that is operating above the resonant frequency, the current
In a series RLC circuit that is operating above the resonant frequency, the current
To tune a parallel resonant circuit to a higher frequency, the capacitance should be
To tune a parallel resonant circuit to a higher frequency, the capacitance should be
A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 µF capacitor are in parallel across a 17 kHz ac source. The coil's internal resistance, RW, is 30 Ω. The equivalent parallel resistance, Rp(eq), is
A 6.8 kΩ resistor, a 7 mH coil, and a 0.02 µF capacitor are in parallel across a 17 kHz ac source. The coil's internal resistance, RW, is 30 Ω. The equivalent parallel resistance, Rp(eq), is
In a series RLC circuit, the larger reactance determines the net reactance of the circuit.
In a series RLC circuit, the larger reactance determines the net reactance of the circuit.
A 15 Ω resistor, a 220 µH coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
A 15 Ω resistor, a 220 µH coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
In a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is
In a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is
Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are equal in magnitude.
Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are equal in magnitude.
The reactive voltages, VL and VC, cancel at resonance.
The reactive voltages, VL and VC, cancel at resonance.
In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.
In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.
XL and XC have opposing effects in an RLC circuit.
XL and XC have opposing effects in an RLC circuit.
A 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
A 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
In a series RLC circuit, the current is minimum at resonance.
In a series RLC circuit, the current is minimum at resonance.
A 15 Ω resistor, an inductor with 8 Ω inductive reactance, and a capacitor with 12 Ω capacitive reactance are in parallel across an ac voltage source. The circuit impedance is
A 15 Ω resistor, an inductor with 8 Ω inductive reactance, and a capacitor with 12 Ω capacitive reactance are in parallel across an ac voltage source. The circuit impedance is
A 9 mH coil is in parallel with a 0.015 µF capacitor across an 18 kHz ac source. The coil's internal resistance RW, is 60 Ω. The circuit impedance is
A 9 mH coil is in parallel with a 0.015 µF capacitor across an 18 kHz ac source. The coil's internal resistance RW, is 60 Ω. The circuit impedance is
A certain series RLC circuit with a 200 Hz, 15 V ac source has the following values: R = 12 Ω, C = 80 µF, and L = 10 mH. The total impedance, expressed in polar form, is
A certain series RLC circuit with a 200 Hz, 15 V ac source has the following values: R = 12 Ω, C = 80 µF, and L = 10 mH. The total impedance, expressed in polar form, is
A 200 Ω resistor, a coil with 30 Ω of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance is
A 200 Ω resistor, a coil with 30 Ω of reactance, and a capacitor of unknown reactance are in series across an ac source. The circuit is at resonance. Circuit impedance is
If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
If the value of C in a series RLC circuit is decreased, the resonant frequency
If the value of C in a series RLC circuit is decreased, the resonant frequency
A 90 Ω resistor, a coil with 30 Ω of reactance, and a capacitor with 50 Ω of reactance are in series across a 12 V ac source. The current through the resistor is
A 90 Ω resistor, a coil with 30 Ω of reactance, and a capacitor with 50 Ω of reactance are in series across a 12 V ac source. The current through the resistor is
