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Multiple ChoiceA series LRC circuit is formed with a power source operating at VRMS = 100 V, and is formed with a 15 Ω resistor, a 0.05 H inductor, and a 200 µF capacitor. What is the voltage across the inductor in resonance? The voltage across the capacitor?324views3rank1comments
Textbook QuestionA series RLC circuit has a 200 kHz resonance frequency. What is the resonance frequency if the capacitor value is doubled and, at the same time, the inductor value is halved?213views
Textbook QuestionA television channel is assigned the frequency range from 54 MHz to 60 MHz. A series RLC tuning circuit in a TV receiver resonates in the middle of this frequency range. The circuit uses a 16 pF capacitor. a. What is the value of the inductor?175views
Textbook Question(II) A 25-mH coil whose resistance is 0.80 Ω is connected to a capacitor C and a 420-Hz source voltage. If the current and voltage are to be in phase, what value must C have?5views
Textbook Question(I) What is the resonant frequency of the LRC circuit of Example 30–11? At what rate is energy taken from the generator, on the average, at this frequency?7views
Textbook Question(II) The frequency of the ac voltage source (peak voltage Vo) in an LRC circuit is tuned to the circuit’s resonant frequency f₀ = 1 / (2π√LC). (a) Show that the peak voltage across the capacitor is Vco = VoTo/ (2π τ), where To ( =1/fo) is the period of the resonant frequency and τ = RC is the time constant for charging the capacitor C through a resistor R. (b) Define β = To/ (2π τ) so that Vco = βVo. Then β is the “amplification” of the source voltage across the capacitor. If a particular LRC circuit contains a 2.0-nF capacitor and has a resonant frequency of 5.0 kHz, what value of R will yield β = 125?6views
Textbook Question(III) (a) Determine a formula for the average power P dissipated in an LRC circuit in terms of L, R, C, ω and Vo.10views
Textbook Question(III) Determine a formula for the average power P dissipated in an LRC circuit in terms of L, R, C, ω and Vo. (b) At what frequency is the power a maximum?6views
Textbook Question(III) Determine a formula for the average power P dissipated in an LRC circuit in terms of L, R, C, ω and Vo. (c) Find an approximate formula for the width of the resonance peak in average power, Δω, which is the difference in the two (angular) frequencies where P has half its maximum value. Assume a sharp peak.7views