Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
4th Edition
ISBN: 9780134110684
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 32, Problem 21EAP
An electric circuit, whether it’s a simple lightbulb or a complex amplifier, has two input terminals that are connected to the two output terminals of the voltage source. The impedance between the two input terminals (often a function of frequency) is the circuit’s input impedance. Most circuits are designed to have large input impedance. To see why, suppose you need to amplify the output of a high-pass filter that is constructed with a
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A high‑voltage discharge tube is often used to study atomic spectra. The tubes require a large voltage across their terminals to operate. To get the large voltage, a step‑up transformer is connected to a line voltage (120 V rms) and is designed to provide 3100 V rms to the discharge tube and to dissipate 90.0 W.
What is the ratio of the number of turns in the secondary to the number of turns in the primary, Ns/Np?
What are the rms currents ip,rms andis,rms in the primary and secondary coils, respectively, of the transformer?
Most signals (responses from transducers, audio, radio waves) are complex waveforms, i.e., a mixture of many frequencies.
Consider a signal that is the sum of two AC voltages at frequencies of 100 Hz and 10 kHz, each with amplitude V。 = 1
Volt. The signal is passed through a low pass filter with time constant ▾ RC = 1 msec. The circuit and input waveform are
shown below:
=
V.
in
ww
R
100 Hz
C
V
10 kHz
WWW
Because the equations describing networks of R's and C's are linear, the voltage across a component is just the sum of its
response to each frequency component separately. Sketch what this (total) output waveform would look like.
The peak current through a capacitor is 8.0 mA when connected to an AC source with a peak voltage of 1.0 V. What is the capacitive reactance of the capacitor?
Chapter 32 Solutions
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Ch. 32 - Prob. 1CQCh. 32 - Prob. 2CQCh. 32 - Prob. 3CQCh. 32 - Prob. 4CQCh. 32 - Prob. 5CQCh. 32 - Prob. 6CQCh. 32 - Prob. 7CQCh. 32 - The resonance frequency of a series RLC circuit is...Ch. 32 - Prob. 9CQCh. 32 - Prob. 10CQ
Ch. 32 - Prob. 1EAPCh. 32 - Prob. 2EAPCh. 32 - A 110Hz source of emf has a peak voltage of 50V ....Ch. 32 - Prob. 4EAPCh. 32 - Prob. 5EAPCh. 32 - Prob. 6EAPCh. 32 - Prob. 7EAPCh. 32 - Prob. 8EAPCh. 32 - Prob. 9EAPCh. 32 - Prob. 10EAPCh. 32 - Prob. 11EAPCh. 32 - Prob. 12EAPCh. 32 - Prob. 13EAPCh. 32 - Prob. 14EAPCh. 32 - A high-pass RC filter is connected to an AC source...Ch. 32 - Prob. 16EAPCh. 32 - Prob. 17EAPCh. 32 - A low-pass filter consists of a 100F capacitor in...Ch. 32 - What are VRand VCif the emf frequency in FIGURE...Ch. 32 - A high-pass filter consists of a 1.59F capacitor...Ch. 32 - An electric circuit, whether it’s a simple...Ch. 32 - A 20mH inductor is connected across an AC...Ch. 32 - The peak current through an inductor is 10mA ....Ch. 32 - Prob. 24EAPCh. 32 - Prob. 25EAPCh. 32 - An inductor has a peak current of 330A when the...Ch. 32 - A series RLC circuit has a 200kHz resonance...Ch. 32 - Prob. 28EAPCh. 32 - Prob. 29EAPCh. 32 - A series RLC circuit consists of a 50 resistor, a...Ch. 32 - At what frequency f do a 1.0F capacitor and a 1.0H...Ch. 32 - Prob. 32EAPCh. 32 - Prob. 33EAPCh. 32 - The heating element of a hair drier dissipates...Ch. 32 - A resistor dissipates 2.0W when the rms voltage of...Ch. 32 - 36. For what absolute value of the phase angle...Ch. 32 - The motor of an electric drill draws a 3.5Arms...Ch. 32 - Prob. 38EAPCh. 32 - Prob. 39EAPCh. 32 - Prob. 40EAPCh. 32 - Prob. 41EAPCh. 32 - Prob. 42EAPCh. 32 - Prob. 43EAPCh. 32 - Prob. 44EAPCh. 32 - Prob. 45EAPCh. 32 - Prob. 46EAPCh. 32 - Prob. 47EAPCh. 32 - Prob. 48EAPCh. 32 - Use a phasor diagram to analyze the RL circuit of...Ch. 32 - A series RL circuit is built with a 110 resistor...Ch. 32 - A series RLC circuit consists of a 75 resistor, a...Ch. 32 - Prob. 52EAPCh. 32 - Prob. 53EAPCh. 32 - Prob. 54EAPCh. 32 - Prob. 55EAPCh. 32 - Prob. 56EAPCh. 32 - Prob. 57EAPCh. 32 - Prob. 58EAPCh. 32 - Prob. 59EAPCh. 32 - The tuning circuit in an FM radio receiver is a...Ch. 32 - A television channel is assigned the frequency...Ch. 32 - Prob. 62EAPCh. 32 - Prob. 63EAPCh. 32 - Prob. 64EAPCh. 32 - Prob. 65EAPCh. 32 - Prob. 66EAPCh. 32 - A motor attached to a 120V/60Hz power line draws...Ch. 32 - Prob. 68EAPCh. 32 - Prob. 69EAPCh. 32 - Prob. 70EAPCh. 32 - Prob. 71EAPCh. 32 - Consider the parallel RLC circuit shown in FIGURE...
Knowledge Booster
Learn more about
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.Similar questions
- 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?arrow_forwardAn 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?arrow_forwardWhat is the impedance of a series combination of a 50resistor, a 5.0F capacitor, and a 10F capacitor at a frequency of 2.0 kHz?arrow_forward
- 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?arrow_forwardA resistor with resistance R and a capacitor with capacitance C are connected in series to an AC voltage source. The time-dependent voltage across the capacitor is given by VC(t) = VC0sin(omegat). What is the amplitude VR of the voltage across the resistor?arrow_forwardNowadays, touch screen devices are everywhere. Consider a simple capacitive touch sensor comprised of a resistor with resistance R=1.57 MΩ and a capacitor with capacitance C=1.09 nF connected in series. A standard wall outlet powers the sensor with an output frequency f=50.0 Hz. Pressing the sensor triples the capacitance of the circuit. A logic gate detects a change in the circuit's impedance. Determine the initial impedance Z0 of the circuit in megaohms (MΩ). Determine the impedance Zp of the circuit with a pressed sensor in megaohms (MΩ).arrow_forward
- What is the impedance of a series combination of 30 2 resistor, a 2.0 µF capacitor and a 16 µF capacitor at a frequency of 9.0 kHz. Z =arrow_forwardProblem 1: Consider the circuit depicted in the attached figure. The voltage source is an AC source of frequencyf = 55 Hz. R, C, Randomized Variables R1 = 103 Q 7. R2 = 162 Q C1 = 6.5 µF C2 = 9.5 µF C2 R, L = 0.77 H Part (a) Given the above circuit, write an expression for the total impedance Z for the circuit as a complex number. You may assume the current is a completely real phasor. Expression : Z = Select from the variables below to write your expression. Note that all variables may not be required. a, B, A, n, 0, C1, C1+, C2, d, f, g, h, i, L, m, p, P, R1, R2, t Part (b) Given the values for resistance, inductance, and capacitance above, what is the magnitude of the phasor for the impedance Z in 2. Numeric : A numeric value is expected and not an expression. |Z| = Part (c) Given the values for resistance, inductance, and capacitance above, what is the phase angle of the phasor for the impedance Z in degrees. Numeric : A numeric value is expected and not an expression. Part (d) If…arrow_forwardA technician at a semiconductor facility is using an oscilloscope to measure the AC voltage across a resistor in a circuit. The technician measures the oscillating voltage to be a sine wave with a peak voltage of 7.75 V. However, the technician must record the RMS voltage on a report. What value Vrms should the technician report? V rms = Varrow_forward
- A 6.0-µF capacitor is connected to an ac signal with a frequency of 60 Hz. If the maximum voltage applied to the capacitor is 8.0 V, what is its capacitive reactance? O 160 Q O 7.5 x 1062 O 740 Q 1 O 6.0 Q O 440 Qarrow_forwardA simple circuit with R = 50N, and L= 200 mH, would be O A low-pass filter with f0 = 40 Hz O A low-pass filter with f0 = 250 Hz O A high-pass filter with f0 = 40 Hz O A high-pass filter with f0 250 Hzarrow_forwardA sine-wave voltage source drives the circuit. This question attempts to measure the capacitance. You may use I = dQ/dt with VC = Q/C. Alternatively, you may use the capacitive reactance, XC = 1/ωC. The current in the circuit is I = I0*cos(ωt). You use the oscilloscope to measure the peak-to-peak voltage for the capacitor (VCp), and then for the resistor (VRp). Knowing the frequency (ω) and the resistance (R), one can (in theory) calculate the capacitance. Calculate the capacitance (in microfarads, μF = 10-6 F). These are the numbers: VCp = 15 volts VRp = 10 volts ω = 7,814 rad/s R = 608 ohmsarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Introduction To Alternating Current; Author: Tutorials Point (India) Ltd;https://www.youtube.com/watch?v=0m142qAZZpE;License: Standard YouTube License, CC-BY