The impedance of an L-R-C parallel circuit was derived in Problem 31.54. (a) Show that at the resonance angular frequency ω 0 = 1/ L C , the impedance Z is a maximum and therefore the current through the ac source is a minimum, (b) A 100-Ω resistor, a 0.100- μ F capacitor, and a 0.300-H inductor are connected in parallel to a voltage source with amplitude 240 V. What is the resonance angular frequency? For this circuit, what is (c) the maximum current through the source at the resonance frequency; (d) the maximum current in the resistor at resonance; (e) the maximum current in the inductor at resonance; (f) the maximum current in the branch containing the capacitor at resonance?
The impedance of an L-R-C parallel circuit was derived in Problem 31.54. (a) Show that at the resonance angular frequency ω 0 = 1/ L C , the impedance Z is a maximum and therefore the current through the ac source is a minimum, (b) A 100-Ω resistor, a 0.100- μ F capacitor, and a 0.300-H inductor are connected in parallel to a voltage source with amplitude 240 V. What is the resonance angular frequency? For this circuit, what is (c) the maximum current through the source at the resonance frequency; (d) the maximum current in the resistor at resonance; (e) the maximum current in the inductor at resonance; (f) the maximum current in the branch containing the capacitor at resonance?
The impedance of an L-R-C parallel circuit was derived in Problem 31.54. (a) Show that at the resonance angular frequency ω0=
1/
L
C
, the impedance Z is a maximum and therefore the current through the ac source is a minimum, (b) A 100-Ω resistor, a 0.100-μF capacitor, and a 0.300-H inductor are connected in parallel to a voltage source with amplitude 240 V. What is the resonance angular frequency? For this circuit, what is (c) the maximum current through the source at the resonance frequency; (d) the maximum current in the resistor at resonance; (e) the maximum current in the inductor at resonance; (f) the maximum current in the branch containing the capacitor at resonance?
An L-R-C series circuit consists of a 2.50 µF capacitor, a 5.00 mH inductor, and a 75.0 Ω resistor connected across an ac source of voltage amplitude 15.0 V having variable frequency. (a) Under what circumstances is the average power delivered to the circuit equal to 1/2 VrmsIrms? (b) Under the conditions of part (a), what is the average power delivered to each circuit element and what is the maximum current through the capacitor?
You have a 200 Ω resistor, a 0.400 H inductor, a 5.00 µF capacitor, and a variable-frequency ac source with an amplitude of 3.00 V. You connect all four elements together to form a series circuit. (a) At what frequency will the current in the circuit be greatest? What will be the current amplitude at this frequency? (b) What will be the current amplitude at an angular frequency of 400 rad/s? At this frequency, will the source voltage lead or lag the current?
31.27
Analyzing an L-R-C Circuit. You have a 200 № resistor, a 0.400 H inductor, a 5.00 µF
capacitor, and a variable-frequency ac source with an amplitude of 3.00 V. You connect
all four elements together to form a series circuit. (a) At what frequency will the current
in the circuit be greatest? What will be the current amplitude at this frequency? (b) What
will be the current amplitude at an angular frequency of 400 rad/s? At this frequency,
will the source voltage lead or lag the current?
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.