A 26-k2 resistor is in series with a 57-mH inductor and an ac source. Part A Calculate the impedance of the circuit if the source frequency is 65 Hz. Express your answer to two significant figures and include the appropriate units. Z= Submit Part B Z= Submit μA Value LO Request Answer Calculate the impedance of the circuit if the source frequency is 4.9x10¹ Hz. Express your answer to two significant figures and include the appropriate units. 1 μA Value 1 → Request Answer Units Pearson ? Units ? Revi Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contact Us !

A 26-k2 resistor is in series with a 57-mH inductor and an ac source. Part A Calculate the impedance of the circuit if the source frequency is 65 Hz. Express your answer to two significant figures and include the appropriate units. Z= Submit Part B Z= Submit μA Value LO Request Answer Calculate the impedance of the circuit if the source frequency is 4.9x10¹ Hz. Express your answer to two significant figures and include the appropriate units. 1 μA Value 1 → Request Answer Units Pearson ? Units ? Revi Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contact Us !

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter15: Alternating-current Circuits

Section: Chapter Questions

Problem 25P: A resistor and capacitor are connected in series across an ac generator. The emf of the generator is...

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An PLC series circuit with R=600 , L = 30 mH. and c=0.050F is driven by an ac source whose frequency and voltage amplitude are 500 Hz and 50 V, respectively, (a) What is the impedance of the circuit? (b) What is the amplitude of the current in the circuit? (c) What is the phase angle between the emf of the source and the current?
A 700-pF capacitor is connected across an ac source with a voltage amplitude of 160 V and a frequency of 20 kHz. (a) Determine the capacitive reactance of the capacitor and the amplitude of the output current of the source. (b) If the frequency is changed to 60 Hz while keeping the voltage amplitude at 160 V, what are the capacitive reactance and the current amplitude?
In an RLC series circuit, the voltage amplitude and frequency of the source are 100 V and 500 Hz, respectively, an R = 5O0. L=0.20H, and C=2.0F . (a)What is the impedance of the circuit? (b) What is the amplitude of the current from the source? (C) If the emf of the source Is given by v(tt)=(100V)sin , how does the current vary with time? (d) Repeat the calculations with C changed to 0.20F .
A resistor and inductor are connected in series across an ac generator. The emf of the generator is given by v(t)=V0cost , where V0=120V and =120rad/s ; also, R=400 and L = 1.5 H. (a) What Is the impedance of the circuit? (b) What is the amplitude of the current through the resistor? (C) Write an expression for the current through the resistor. (d) Write expressions representing the voltages across the resistor and across the inductor.
An ac source of voltage amplitude 100 V and frequency 1.0 kHz drives an PLC series circuit with R=20, L = 4.0 mH, and C=50F . (a) Determine the rms current through the circuit, (b) What are the rms voltages across the three elements? (c) What is the phase angle between the emf and the current? (d) What is the power output of the source? (e) What is the power dissipated in the resistor?
A resistor and capacitor are connected in series across an ac generator. The emf of the generator is given by V(t)=V0cost , where V0=120V , =120rad/s , R=400and C=400F.(a)What is the impedance of the circuit? (b) What is the amplitude of the current through the resistor? (C) Write an expression for the current through the resistor. (d) Write expressions representing the voltages across the resistor and across the capacitor.
The emf of an ac source is given by v(t)=V0sint, where V0=100V and =200 . Find an expression that represents the output current of the source if it is connected across (a) a 20-pF capacitor, (b) a 20-mH inductor, and (c) a 50 resistor.
For an RLC series circuit, R=100 , L = 150 mH, and C=0.25F . (a) If an ac source of variable frequency is connected to the circuit, at what frequency is maximum power dissipated in the resistor? (b) What is the quality factor of the circuit?
Calculate the reactance of a 5.0F capacitor at (a) 60 Hz, (b) 600 Hz, and (c) 6000 Hz.
A 30F capacitor is connected across a 60-Hz ac source whose voltage amplitude is 50 V. (a) What is the maximum charge on the capacitor? (b) What is the maximum current into the capacitor? (c) What is the phase relationship between the capacitor charge and the current in the circuit?
The figure shows a graph of the output from an AC voltage source. Part A What is the maximum voltage Vmax of the source? Part B What is the average voltage Vavg of the source? Part C What is the root-mean-square voltage Vrms of the source? Part D What is the period T of the source? Express your answer in seconds to two significant figures Part E What is the frequency f of the source? Express your answer in hertz to three significant figures. Part F What is the angular frequency ω of the source? Express your answer in radians per second to three significant figures.
A 20.0 nF capacitor is connected across an AC generator that produces a peak voltage of 4.10 V. ▼ Part A At what frequency f is the peak current 40.0 mA ? Express your answer to three significant figures and include the appropriate units. Value Submit Part B 0 μÅ I Ic? What is the instantaneous value of the emf at the instant when ic = Express your answer as an integer and include the appropriate units. Submit Value Units Request Answer μᾶ Units Request Answer ? ****** ?