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Chapter 32: Q. 29 (page 925)
What capacitor in series with a resistor and a inductor will give a resonance frequency of
Capacitor of will give us resonance frequency of
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A capacitor is connected across an oscillating emf. The peak current through the capacitor is What is the peak current if:
a. The capacitance is doubled?
b. The peak emf is doubled?
c. The frequency is doubled?
A low-pass filter consists of a capacitor in series with a resistor. The circuit is driven by an source with a peak voltage of .
a. What is the crossover frequency ?
b. What is when and ?
A television channel is assigned the frequency range from to . A series RLC tuning circuit in a TV receiver resonates in the middle of this frequency range. The circuit uses a capacitor.
a. What is the value of the inductor?
b. In order to function properly, the current throughout the frequency range must be at least of the current at the resonance frequency. What is the minimum possible value of the circuit’s resistance?
A series RLC circuit with a resistor dissipates when attached to a power line. What is the power factor?
The small transformers that power many consumer products produce a, emf. Design a circuit using resistors and capacitors that uses the transformer voltage as an input and produces a output that leads the input voltage by .
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