
Physics
7th Edition
ISBN: 9780321929013
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 21, Problem 37P
To determine
To estimate the power saving if the voltage is stepped up from 120 V to 1200 V and then stepped down again.
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Four capacitors are connected as shown in the figure below. (Let C = 12.0 μF.)
a
C
3.00 με
Hh.
6.00 με
20.0 με
HE
(a) Find the equivalent capacitance between points a and b.
5.92
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(b) Calculate the charge on each capacitor, taking AV ab = 16.0 V.
20.0 uF capacitor 94.7
6.00 uF capacitor 67.6
32.14
3.00 µF capacitor
capacitor C
☑
με
με
The 3 µF and 12.0 uF capacitors are in series and that combination is in parallel with the 6 μF capacitor. What quantity is the same for capacitors in parallel? μC
32.14
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You are correct that the charge on this capacitor will be the same as the charge on the 3 μF capacitor. μC
In the pivot assignment, we observed waves moving on a string stretched by hanging
weights. We noticed that certain frequencies produced standing waves. One such
situation is shown below:
0 ст
Direct Measurement
©2015 Peter Bohacek I.
20
0 cm 10
20
30
40
50
60
70
80
90
100
Which Harmonic is this?
Do NOT include units!
What is the wavelength of this wave in cm with only no decimal places?
If the speed of this wave is 2500 cm/s, what is the frequency of this harmonic (in Hz, with
NO decimal places)?
Four capacitors are connected as shown in the figure below. (Let C = 12.0 µF.)
A circuit consists of four capacitors. It begins at point a before the wire splits in two directions. On the upper split, there is a capacitor C followed by a 3.00 µF capacitor. On the lower split, there is a 6.00 µF capacitor. The two splits reconnect and are followed by a 20.0 µF capacitor, which is then followed by point b.
(a) Find the equivalent capacitance between points a and b. µF(b) Calculate the charge on each capacitor, taking ΔVab = 16.0 V.
20.0 µF capacitor
µC
6.00 µF capacitor
µC
3.00 µF capacitor
µC
capacitor C
µC
Chapter 21 Solutions
Physics
Ch. 21 - Prob. 1OQCh. 21 - Prob. 1QCh. 21 - Prob. 2QCh. 21 - Prob. 3QCh. 21 - Prob. 4QCh. 21 - (a) If the north pole of a thin flat magnet moves...Ch. 21 - 6. Suppose you are looking along a line through...Ch. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9Q
Ch. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Will an eddy current brake (Fig. 21-20) work on a...Ch. 21 - Prob. 14QCh. 21 - Prob. 15QCh. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - Prob. 18QCh. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 22QCh. 21 - Prob. 23QCh. 21 - Prob. 24QCh. 21 - Prob. 25QCh. 21 - Prob. 26QCh. 21 - Prob. 27QCh. 21 - Prob. 28QCh. 21 - Prob. 29QCh. 21 - Prob. 1MCQCh. 21 - Prob. 2MCQCh. 21 - Prob. 3MCQCh. 21 - Prob. 4MCQCh. 21 - Prob. 5MCQCh. 21 - Prob. 6MCQCh. 21 - Prob. 7MCQCh. 21 - Prob. 8MCQCh. 21 - Prob. 9MCQCh. 21 - Prob. 10MCQCh. 21 - Prob. 11MCQCh. 21 - Prob. 12MCQCh. 21 - Prob. 13MCQCh. 21 - Prob. 14MCQCh. 21 - Prob. 15MCQCh. 21 - Prob. 16MCQCh. 21 - Prob. 17MCQCh. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - The rectangular loop in Fig. 21-5813 is being...Ch. 21 - If the solenoid in Fig. 21-59 |D is being pulled...Ch. 21 - An 18.5-cm-diameter loop of wire is initially...Ch. 21 - A fixed 10.8-cm-diameter wire coil is...Ch. 21 - A 16-cm-diameter circular loop of wire is placed...Ch. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - A circular loop in the plane of the paper lies in...Ch. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - Prob. 22PCh. 21 - A simple generator has a square armature 6.0 cm on...Ch. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - Prob. 30PCh. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - Prob. 45PCh. 21 - Prob. 46PCh. 21 - Prob. 47PCh. 21 - Prob. 48PCh. 21 - Prob. 49PCh. 21 - Prob. 50PCh. 21 - Prob. 51PCh. 21 - Prob. 52PCh. 21 - Prob. 53PCh. 21 - Prob. 54PCh. 21 - Prob. 55PCh. 21 - Prob. 56PCh. 21 - Prob. 57PCh. 21 - Prob. 58PCh. 21 - (a) What is the reactance of a well-insulated...Ch. 21 - Prob. 60PCh. 21 - Prob. 61PCh. 21 - Prob. 62PCh. 21 - Prob. 63PCh. 21 - Determine the total impedance, phase angle, and...Ch. 21 - Prob. 65PCh. 21 - Prob. 66PCh. 21 - Prob. 67PCh. 21 - Prob. 68PCh. 21 - Prob. 69PCh. 21 - The variable capacitor in the tuner of an AM radio...Ch. 21 - Prob. 71PCh. 21 - A resonant circuit using a 260-nF capacitor is to...Ch. 21 - Prob. 73PCh. 21 - Prob. 74GPCh. 21 - Prob. 75GPCh. 21 - Prob. 76GPCh. 21 - Prob. 77GPCh. 21 - Prob. 78GPCh. 21 - Power is generated at 24 kV at a generating plant...Ch. 21 - Prob. 80GPCh. 21 - Prob. 81GPCh. 21 - Prob. 82GPCh. 21 - Prob. 83GPCh. 21 - Prob. 84GPCh. 21 - Prob. 85GPCh. 21 - Prob. 86GPCh. 21 - Prob. 87GPCh. 21 - Prob. 88GPCh. 21 - Prob. 89GPCh. 21 - Prob. 90GPCh. 21 - Prob. 91GPCh. 21 - Prob. 92GP
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