Why does a capacitor act as a short circuit at high frequencies?
Q: Suppose the amplitudes of the voltages are Vco=21.6 volts, Vro=28.2 volts, and VLo=20.4 volts.…
A: Using formula
Q: At what frequency will a generator with an rms voltage of 504 Vproduce an rms current of 7.50 mA in…
A: Vr=RMS voltage=504 VIr=RMS current=7.5 mA=7.5×10−3 mAC=Capacitance=0.015 μC=0.015×10−6…
Q: A 10 kHz voltage is applied to a 0.0047 μF capacitor, and 1 mA of rms current is measured. What is…
A: I=1mA=10-3AC=0.0047×10-6 Ff=10×103 Hz
Q: A capacitor of capacitance C is connected to an ac generator. What effect does increasing the…
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Q: When a 3.0-μF capacitor is connected to a generator whose rms output is 25 V, the current in the…
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Q: Q. 8. (i) When an ac source is connected to an ideal capacitor show that the average power supplied…
A: We must establish the average power delivered by the source during a whole cycle when an ac source…
Q: The peak value of an alternating current in a 1500 W device is 5.4 A. What is the rms voltage across…
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Q: A 54.0-?F capacitor is connected to a 46.0-N resistor and a generator whose rms output is 30.0 V at…
A: Given: Capacitor,C=54μF=54×10-6FResistance,R=46ΩRMS Voltage,VRMS=30VFrequency,f=60Hz The term RMS…
Q: Capacitors have the opposite effect on AC circuits that inductors have. Explain this statement.
A: The difference in the effect of capacitor and inductors on AC circuits are given below. (a)…
Q: As far as power in an AC circuit is concerned, a delayed current rectified current sinusoidal…
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Q: -. If the peak value of the alternating current in a 950 W device is 5.0 A, then what is the rms…
A: Io=5Amp Irms= Io/√2=5/√2 Amp
Q: When the frequency of an ac circuit is increased at constant voltage, the current increases and then…
A: Impedance in LC Circuit ,Z=XL-XCwhen LC circuit is in resonance, Impedance become zero, and maximum…
Q: A 96.0-μF capacitor is connected to a generator operating at a low frequency. The rms voltage of the…
A: Capacitance, C = 96 μFVrms = 5.90 VIrms = 19 AFrequency, f = ?
Q: An oscillating LC circuit consisting of a 2.0 nF capacitor and a 1.0 mH coil has a maximum voltage…
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Q: An 8 kHz sinusoidal voltage is applied to a series RC circuit. What is the frequency of the voltage…
A: Given, An 8 kHz sinusoidal voltage is applied to a series RC circuit. Voltage across any component…
Q: The peak value of an alternating current in a 1800 −W device is 5.8 A. What is the rms voltage…
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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: 3) A pressure measuring instrument uses a capacitive transducer its diaphragms. A pressure of 600…
A: GivenDistance of separation, d=4 mmPressure ,P=600 kN/m2Average deflection, ∆d =0.39 mmInitial…
Q: The peak value of an alternating current in a 1900-WW device is 4.2 AA . What is the rms voltage…
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Q: A resistor, an inductor, and a capacitor are connected in series to an AC source. What is the…
A: The question is asking for the condition under which resonance occurs in a series RLC circuit.…
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: Suppose you have a supply of inductors ranging from 10.0 nH to 100. H, and capacitors ranging from…
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Q: . (a) The peak voltage of an AC supply is 300 V. What is the rms voltage? (b) The rms value of…
A: (a) The peak voltage of an AC supply is 300 V. What is the rms voltage? (b) The rms value of current…
Q: A sinusoidally varying voltage is represented by V(t) = (62.5 V)sin(116 x 3.14t) What are its…
A: Frequency = 58 hzPeak voltage = 62.5 voltExplanation:Step 1: Step 2: Step 3: Step 4:
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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: 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: At what frequency will a 4.80-μF capacitor have a reactance of 7.50 kΩ?
A: Resistance,
Q: In a series RLC circuit that is operating above the resonant frequency, the current
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Q: A circuit contains a light bulb and a capacitor (RC circuit) in series connected to an AC power…
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Q: G5
A: Given that-Peak voltage, V=180 VoltResistance, R= 330Ω
Q: Why does the capacitor resist low-frequency signals more than high-frequency ones?
A: The capacitor reacts very differently at the two different frequencies,\ and in exactly the opposite…
Q: A circuit has a resistor with resistance equal to 8 Ω and an inductor with inductance 8e-4 H. What…
A: Solution is as follows:
Q: Can watts be calculated by multiplying the total voltage by the current flow through the resistor?…
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Q: If an AC generator rotates with a higher speed, what happens to the peak voltage that it produces?…
A: (a) The peak voltage gets larger
Q: Capacitive reactance is more when O Capacitance is less and frequency of supply is less O…
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Q: For which one of the following circuit arrangements will the power factor be non- zero?
A: Power factor must e non zero.
- A capacitor is a passive electrical component that is capable of storing energy in an electric field. It has two terminals and is also known as a condenser or condensator.
- A capacitor in an AC circuit has a property called reactance. This is the restriction on current flow due to the impedance of the capacitor. It depends on the frequency and is given by,
Here f is the frequency of the AC and C is the capacitance.
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