Why does a capacitor act as a short circuit at high frequencies and as an open circuit at low frequencies?
Q: A 30-μF capacitor is connected across a 60-Hz ac source whose voltage amplitude is 50 V. (a) What is…
A: Given that a capacitor has 30 micro Farad of capacitance connected across 60 Hz source whose…
Q: What is the expression for the voltage in an AC circuit if it has a rms voltage of 120 V and a…
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Q: What is the impedance of this circuit?
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Q: What is the reactance of a 8.40 μF capacitor at a frequency of 70.0 Hz ? What is the reactance of a…
A: given data, capacitance, C = 8.40 μF =8.40×10-6 F frequency , f = 70 Hz angular frequency ,ω=2πf =…
Q: As far as power in an AC circuit is concerned, a delayed current rectified current sinusoidal…
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Q: 4. of this voltage, (b) the amplitude of this voltage, and (c) the rms value of this voltage. (d) If…
A: A graph of sinosoidal voltage variation is given in graph above To find RMS voltage Frequency…
Q: In limit of extremely high frequencies, and high voltage, an inductor behaves like (select all that…
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Q: What is the capacitance of an oscillating LC circuit in nanofarads if the maximum charge on the…
A: Given that:Q=1.5 μCU=168 μJ
Q: The resistance in a series RCL circuit is doubled What can be said about the resonant frequency…
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Q: Two capacitors are connected in parallel across a 24-V ms, 7.5-kHz sine-wave generator, and the…
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Q: An ac circuit has a 300- resistor in series with a 10-µF capacitor and a 900- mH inductor. What is…
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Q: The graph shows the impedance as a function of frequency for a series RCL circuit. At what frequency…
A: The graph between Impedence of a series LCR circuit and frequency is as shown in the figure. The…
Q: What is the impedance of a RLC circuit with a resistor of 120 ohms, and an inductor of 48 mH and a…
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Q: The United States and Canada use 120 V rms as the standard household voltage, while most of the rest…
A: 120 V rms as the standard household voltage Advantages- a) If a person touched a live wire so less…
Q: When a 4.0-µF capacitor is connected to a generator whose rms output is 28 V, the current in the…
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Q: The figure below shows three lamps connected to a 120-V AC (rms) household supply voltage. Lamps 1…
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Q: Could a series circuit that includes a capacitor serve the same purpose as a parallel circuit? How?…
A: Capacitor is a passive electronic component which is used to store and release electricity (…
Q: A sinusoidal voltage source has a peak voltage of 12 V and a frequency of 50 Hz. What is the…
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Q: In an AC circuit, the effective impedance of the series combination of an inductor and a capacitor:…
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Q: Why does a capacitor act as a short circuit at high frequencies?
A: A capacitor is a passive electrical component that is capable of storing energy in an electric…
Q: An electrical engineer is working with a parallel AC circuit. The circuit draws 10 ohms on a…
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- An instructor builds a circuit in which an AC power supply with an rms voltage of 220 V is connected to a 2.54 kQ resistor. (a) What is the maximum potential difference across the resistor (in V)? (b) What is the maximum current through the resistor (in A)? A (c) What is the rms current through the resistor (in A)? A (d) What is the average power dissipated by the resistor (in W)? WQuestion 8 (4 points) For which one of the following circuit arrangements will the power factor be non- zero? a capacitor in series with an ac generator a capacitor and resistor in series with an ac generator an inductor in series with an ac generator a capacitor and inductor in series with an ac generator Otwo capacitors in series with an ac generatorIn an AC circuit containing only a capacitor and power source, when capacitance of the capacitor is reduced from 22 micro farad to 11 micro farad, the peak current in the circuit quadruples compared to original remains same becomes half compared to original becomes quarter of the original doubles compared to original
- The voltage supplied to an ac circuit is given by v = (120 sin(60t))V. What are the rms voltage and the frequency? a) 120 V, 60 Hz b) 120 V, 380 Hz c) 170 V, 9.5 Hz d) 85 V, 9.5 Hz e) 240 V, 30 HzA 2.7 μC capacitor is connected to a variable AC voltage supply (rms voltage = 240 v, frequency f = 80 Hz). What is the capacitive reactance? a) 0.0014 Ω b) 2315 Ω c) 736 Ω d) none of these.When a 2.0 µF capacitor is connected to a generator whose rms output is 34 V, the current in the circuit is observed to be 0.33 A. What is the frequency of the source? 772.4 Hz 2,426.5 Hz 594.1 Hz 1,544 Hz none