1. Why does the voltage of the capacitor vary with frequency? where does this missing voltage...
1. Why does the voltage of the capacitor vary with frequency? where does this missing voltage go? (Hint: This is Kirchoff's Rule)
2. What can you say about the resistance of a capacitor in an AC circuit?
Homework Answers
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1. Why does the voltage of the capacitor vary with frequency?
where does this missing voltage...
A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no inductor.
A circuit has an ac voltage source and a resistor and capacitor connected in series. There is no inductor. The ac voltage source has voltage amplitude 0.900 kV and angular frequency w = 20.0 rad/s. The voltage amplitude across the capacitor is 0.500 kV. The resistor has resistance R= 0.300 kΩ. Part A What is the voltage amplitude across the resistor? Part B What is the capacitance C of the capacitor? Part C Does the source voltage lag or lead the current? Part D What is the average...
A 25.0?F capacitor is connected to an ac voltage source with an rms voltage of 136V...
A 25.0?F capacitor is connected to an ac voltage source with an rms voltage of 136V and a frequency of 2.40KHz. What is the capacitive reactance of the circuit? Assume that there is no resistance in the circuit, and answer in units of ohms.
1. What is the vacRMS Voltage for the signal shown below? 10 V 2 V 2....
1. What is the vacRMS Voltage for the signal shown below? 10 V 2 V 2. An AC voltage of 12vacaMs is equal to what peak to peak voltage? 3. In a purely resistive AC circuit where 10vacpK-PK is applied across an 8-ohm resistor, the current is 4. The total capacitance of a 330HF capacitor connected in parallel with a 470 uF capacitor is If an ac signal has a frequency of 125kHz, how much time does it take for...
2. In the following circuit, v,-20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may va...
2. In the following circuit, v,-20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may vary from 1.5 k2 to 2.5 k2. Assume the diode is ideal (Vox -0 V). b) Sketch v, and the output Vour waveforms. c) The filter capacitor often represents a significant economic factor in terms of cost, size, and weight in the design of rectifier circuit....
2. In the following circuit, v, 20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may var...
2. In the following circuit, v, 20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may vary from 1.5 kQ to 2.5 kQ. Assume the diode is ideal (VON 0 V). b) Sketch v, and the output vout waveforms. c) The filter capacitor often represents a significant economic factor in terms of cost, size, and weight in the design of rectifier...
Consider the circuit below, where R-5000Ω,C-0.25μF . The voltage amplitude is 10 V and the frequency...
Consider the circuit below, where R-5000Ω,C-0.25μF . The voltage amplitude is 10 V and the frequency of oscillation is 180 rad Is . When voltages and currents are requested, express them in purely real terms. Note: this circuit is examined in some detail in Chapter 7, section 2. Have a look at that first. a) What is the total impedance? Express it as both a complex number and as magnitude and phase. What is the current in the circuit? What...
An ac series circuit consists of a voltage source of frequency f = 60 Hz and...
An ac series circuit consists of a voltage source of frequency f = 60 Hz and voltage amplitude V, a resistor of resistance R = 593 Ω, and a capacitor of capacitance C = 2.8×10−6F. What must the source voltage amplitude V be for the average electrical power consumed in the resistor to be 382 watts? There is no inductance in the circuit.
AC Circuit in Resonance: A circuit is constructed with an AC generator, a resistor, capacitor and...
AC
Circuit in Resonance:
A circuit is constructed with an AC generator, a resistor, capacitor and inductor as The generator voltage varies in time as E Va vb Emsinut, where sm 24 v and w 100 At this frequency, the circuit is in resonance with the maximum value of the current Imax resistance R and the inductance L are unknown. 1) What is L, the value of the inductance of the circuit? mH Submit sin(at) d WW
1. Sketch a graph of voltage vs. frequency for what you expect to see for voltage...
1. Sketch a graph of voltage vs. frequency for what you expect to see for voltage magnitude across a capacitor for a sine wave of increasing frequency in a simple RC circuit. 2. Sketch a graph of voltage vs. frequency for what you expect to see for voltage magnitude across an inductor for a sine wave of increasing frequency in a simple RL circuit.
Derive equations 1 and 2, thank you! When you have a RC series circuit in an...
Derive equations 1 and 2, thank you!
When you have a RC series circuit in an AC source of angular frequency ω (ω = 2πf), you can calculate the capacitance (C) from the equation: max, where VmarR is the amplitude of the voltage across the resistor and Vmax.c is the amplitude of the voltage across the capacitor. [You have to derive this equation in your report.] Similarly, when you have a RL series circuit in an AC source of angular...
1. What is the vacRMS Voltage for the signal shown below? 10 V 2 V 2. An AC voltage of 12vacaMs is equal to what peak to peak voltage? 3. In a purely resistive AC circuit where 10vacpK-PK is applied across an 8-ohm resistor, the current is 4. The total capacitance of a 330HF capacitor connected in parallel with a 470 uF capacitor is If an ac signal has a frequency of 125kHz, how much time does it take for...
2. In the following circuit, v,-20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may vary from 1.5 k2 to 2.5 k2. Assume the diode is ideal (Vox -0 V). b) Sketch v, and the output Vour waveforms. c) The filter capacitor often represents a significant economic factor in terms of cost, size, and weight in the design of rectifier circuit....
2. In the following circuit, v, 20 Vrms (rms value). a) Determine the value of capacitor needed to provide filtering so that the voltage does not drop below 26 V. The load resistance Rioad may vary from 1.5 kQ to 2.5 kQ. Assume the diode is ideal (VON 0 V). b) Sketch v, and the output vout waveforms. c) The filter capacitor often represents a significant economic factor in terms of cost, size, and weight in the design of rectifier...
Consider the circuit below, where R-5000Ω,C-0.25μF . The voltage amplitude is 10 V and the frequency of oscillation is 180 rad Is . When voltages and currents are requested, express them in purely real terms. Note: this circuit is examined in some detail in Chapter 7, section 2. Have a look at that first. a) What is the total impedance? Express it as both a complex number and as magnitude and phase. What is the current in the circuit? What...
AC
Circuit in Resonance:
A circuit is constructed with an AC generator, a resistor, capacitor and inductor as The generator voltage varies in time as E Va vb Emsinut, where sm 24 v and w 100 At this frequency, the circuit is in resonance with the maximum value of the current Imax resistance R and the inductance L are unknown. 1) What is L, the value of the inductance of the circuit? mH Submit sin(at) d WW
Derive equations 1 and 2, thank you!
When you have a RC series circuit in an AC source of angular frequency ω (ω = 2πf), you can calculate the capacitance (C) from the equation: max, where VmarR is the amplitude of the voltage across the resistor and Vmax.c is the amplitude of the voltage across the capacitor. [You have to derive this equation in your report.] Similarly, when you have a RL series circuit in an AC source of angular...
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