13:16RLC Circuits (12 of 19) Series RLC; Calculating Impedance, Current and VoltageStep by Step Science767views
20:47Calculating Impedance, Supply Current and Voltages in Series RLC CircuitEngineers Academy679views
05:01RLC Circuits (3 of 19) Resistance; Phase Shift, Phasor Diagrams, Impedance, An ExplanationStep by Step Science318views
Multiple ChoiceAn AC source operates at an RMS voltage of 70 V and a frequency of 85 Hz. If the source is connected in series to a 20 Ω resistor, a 0.15 H inductor and a 500 µF capacitor, answer the following questions: a) What is the maximum current produced by the source? b) What is the maximum voltage across the resistor? c) What is the maximum voltage across the inductor? d) What is the maximum voltage across the capacitor?466views1rank1comments
Multiple ChoiceAn inductor, a capacitor, and a resistor are in series with a 300Hz AC source. If the capacitor is 470nF, the inductor is 24mH, and the resistor is 800Ω, what is the impedance?275views
Multiple ChoiceAn inductor, a capacitor, and a resistor are in series with a 300Hz AC source with peak voltage 13 V13V. If the impedance of the circuit is 3.4Ω, what is the peak current?267views
Multiple ChoiceAn inductor, a capacitor, and a resistor are in series with an AC source. If the capacitor is 470 nF, the inductor is 24mH, and the resistor is 800 Ω800Ω, what is the circuit's resonant (angular) frequency?254views
Multiple ChoiceAn inductor, a capacitor, and a resistor are in series with a 300Hz AC source. If the capacitor is 470 nF, the inductor is 24 mH, and the resistor is 800 Ω. what is the impedance?227views
Multiple ChoiceAn inductor, a capacitor, and a resistor are in series with an AC source. If the capacitor is 470 nF, the inductor is 24 mH, and the resistor is 800 Ω. what is the circuit's resonant frequency?254views
Textbook QuestionA series RLC circuit consists of a 75 Ω resistor, a 0.12 H inductor, and a 30 μF capacitor. It is attached to a 120 V/60 Hz power line. What are c) the average power dissipated?81views
Textbook QuestionA motor attached to a 120 V/60 Hz power line draws an 8.0 A current. Its average energy dissipation is 800 W. d. How much series capacitance needs to be added to increase the power factor to 1.0?125views
Textbook QuestionThe tuning circuit in an FM radio receiver is a series RLC circuit with a 0.200 μH inductor. b. FM radio stations are assigned frequencies every 0.2 MHz, but two nearby stations cannot use adjacent frequencies. What is the maximum resistance the tuning circuit can have if the peak current at a frequency of 103.9 MHz, the closest frequency that can be used by a nearby station, is to be no more than 0.10% of the peak current at 104.3 MHz? The radio is still tuned to 104.3 MHz, and you can assume the two stations have equal strength.122views
Textbook Question(II) (a) What is the rms current in a series LR circuit when a 60.0-Hz, 120-V rms ac voltage is applied, where R = 965 Ω and L = 255 mH? (b) What is the phase angle between voltage and current? (c) How much power is dissipated? (d) What are the rms voltage readings across R and L?92views
Textbook QuestionShow that the fraction of electromagnetic energy lost (to thermal energy) per cycle in a lightly damped (R² ≪ 4L/C) LRC circuit is approximately∆U = 2πR = 2πU Lω QThe quantity Q can be defined as Q = Lω/R, and is called the Q-value, or quality factor, of the circuit and is a measure of the damping present. A high Q-value means smaller damping and less energy input required to maintain oscillations.33views
Textbook QuestionSuppose a series LRC circuit has two resistors, R₁ and R₂, two capacitors, C₁ and C₂, and two inductors, L₁ and L₂ all in series. Calculate the total impedance of the circuit.56views
Textbook QuestionAn inductance coil draws 2.2 A dc when connected to a 45-V battery. When connected to a 60.0-Hz 120-V (rms) source, the current drawn is 3.8 A (rms). Determine the inductance and resistance of the coil.38views
Textbook Question(II) An ac voltage source is connected in series with a 2.0-μF capacitor and a 750-Ω resistor. Using a digital ac voltmeter, the voltage source is measured to be 4.0 V rms, and the voltages across the resistor and across the capacitor are found to be 3.0 V rms and 2.7 V rms, respectively. Determine the frequency of the ac voltage source. Why is the voltage measured across the voltage source not equal to the sum of the voltages measured across the resistor and across the capacitor?38views
Textbook QuestionA circuit contains two elements, but it is not known if they are L, R, or C. The current in this circuit when connected to a 120-V rms 60.0-Hz source is 5.6 A and lags the voltage by 55°. What are the two elements and what are their values?10views
Textbook Question(a) For an underdamped LRC circuit, determine a formula for the energy U = UE + UB stored in the electric and magnetic fields as a function of time. Give answer in terms of the initial charge Qo on the capacitor.38views
Textbook QuestionFor an underdamped LRC circuit, determine a formula for the energy U = UE + UB stored in the electric and magnetic fields as a function of time. Give answer in terms of the initial charge Qo on the capacitor. (b) Show how dU/dt is related to the rate energy is transformed in the resistor, I²R.39views
Textbook QuestionAn inductor L in series with a resistor R, driven by a sinusoidal voltage source, responds as described by the following differential equation:V₀ sin ωt = L dI + RI. dtShow that a current of the form I = I₀ sin (ωt - Φ) flows through the circuit by direct substitution into the differential equation. Determine the amplitude of the current (I₀) and the phase difference Φ between the current and the voltage source.33views
Textbook Question(II) An LRC series circuit with R = 120 Ω, L = 25 mH, and C = 2.0 μF is powered by an ac voltage source of peak voltage Vo = 340 V and frequency f = 660 Hz. (a) Determine the peak current that flows in this circuit.31views
Textbook Question(II) An LRC series circuit with R = 120 Ω, L = 25 mH, and C = 2.0 μF is powered by an ac voltage source of peak voltage Vo = 340 V and frequency f = 660 Hz. (b) Determine the phase angle of the source voltage relative to the current.30views
Textbook Question(II) An LRC series circuit with R = 120 Ω, L = 25 mH, and C = 2.0 μF is powered by an ac voltage source of peak voltage Vo = 340 V and frequency f = 660 Hz. ((c) Determine the peak voltage across R and its phase angle relative to the source voltage.26views
Textbook Question(II) An LRC series circuit with R = 120 Ω, L = 25 mH, and C = 2.0 μF is powered by an ac voltage source of peak voltage Vo = 340 V and frequency f = 660 Hz. (d) Determine the peak voltage across L and its phase angle relative to the source voltage.12views
Textbook Question(II) An LRC series circuit with R = 120 Ω, L = 25 mH, and C = 2.0 μF is powered by an ac voltage source of peak voltage Vo = 340 V and frequency f = 660 Hz. (e) Determine the peak voltage across C and its phase angle relative to the source voltage.27views
Textbook QuestionThe RC circuit shown in Fig. 30–39 is a low-pass filter because it passes low-frequency ac signals with less attenuation than high-frequency ac signals. (a) Show that the voltage gain is A = Vₒᵤₜ/Vᵢₙ = 1/ (4π²f²R²C² + 1)¹/² (b) Discuss the behavior of the gain A for f → 0 and f → ∞. <IMAGE>
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