COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 17, Problem 81QAP
To determine
(a)
The equivalent capacitance of the combination
To determine
(b)
The charge on each capacitor
To determine
(c)
The potential difference across each capacitor
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Chapter 17 Solutions
COLLEGE PHYSICS
Ch. 17 - Prob. 1QAPCh. 17 - Prob. 2QAPCh. 17 - Prob. 3QAPCh. 17 - Prob. 4QAPCh. 17 - Prob. 5QAPCh. 17 - Prob. 6QAPCh. 17 - Prob. 7QAPCh. 17 - Prob. 8QAPCh. 17 - Prob. 9QAPCh. 17 - Prob. 10QAP
Ch. 17 - Prob. 11QAPCh. 17 - Prob. 12QAPCh. 17 - Prob. 13QAPCh. 17 - Prob. 14QAPCh. 17 - Prob. 15QAPCh. 17 - Prob. 16QAPCh. 17 - Prob. 17QAPCh. 17 - Prob. 18QAPCh. 17 - Prob. 19QAPCh. 17 - Prob. 20QAPCh. 17 - Prob. 21QAPCh. 17 - Prob. 22QAPCh. 17 - Prob. 23QAPCh. 17 - Prob. 24QAPCh. 17 - Prob. 25QAPCh. 17 - Prob. 26QAPCh. 17 - Prob. 27QAPCh. 17 - Prob. 28QAPCh. 17 - Prob. 29QAPCh. 17 - Prob. 30QAPCh. 17 - Prob. 31QAPCh. 17 - Prob. 32QAPCh. 17 - Prob. 33QAPCh. 17 - Prob. 34QAPCh. 17 - Prob. 35QAPCh. 17 - Prob. 36QAPCh. 17 - Prob. 37QAPCh. 17 - Prob. 38QAPCh. 17 - Prob. 39QAPCh. 17 - Prob. 40QAPCh. 17 - Prob. 41QAPCh. 17 - Prob. 42QAPCh. 17 - Prob. 43QAPCh. 17 - Prob. 44QAPCh. 17 - Prob. 45QAPCh. 17 - Prob. 46QAPCh. 17 - Prob. 47QAPCh. 17 - Prob. 48QAPCh. 17 - Prob. 49QAPCh. 17 - Prob. 50QAPCh. 17 - Prob. 51QAPCh. 17 - Prob. 52QAPCh. 17 - Prob. 53QAPCh. 17 - Prob. 54QAPCh. 17 - Prob. 55QAPCh. 17 - Prob. 56QAPCh. 17 - Prob. 57QAPCh. 17 - Prob. 58QAPCh. 17 - Prob. 59QAPCh. 17 - Prob. 60QAPCh. 17 - Prob. 61QAPCh. 17 - Prob. 62QAPCh. 17 - Prob. 63QAPCh. 17 - Prob. 64QAPCh. 17 - Prob. 65QAPCh. 17 - Prob. 66QAPCh. 17 - Prob. 67QAPCh. 17 - Prob. 68QAPCh. 17 - Prob. 69QAPCh. 17 - Prob. 70QAPCh. 17 - Prob. 71QAPCh. 17 - Prob. 72QAPCh. 17 - Prob. 73QAPCh. 17 - Prob. 74QAPCh. 17 - Prob. 75QAPCh. 17 - Prob. 76QAPCh. 17 - Prob. 77QAPCh. 17 - Prob. 78QAPCh. 17 - Prob. 79QAPCh. 17 - Prob. 80QAPCh. 17 - Prob. 81QAPCh. 17 - Prob. 82QAPCh. 17 - Prob. 83QAPCh. 17 - Prob. 84QAPCh. 17 - Prob. 85QAPCh. 17 - Prob. 86QAPCh. 17 - Prob. 87QAPCh. 17 - Prob. 88QAPCh. 17 - Prob. 89QAPCh. 17 - Prob. 90QAPCh. 17 - Prob. 91QAPCh. 17 - Prob. 92QAPCh. 17 - Prob. 93QAPCh. 17 - Prob. 94QAPCh. 17 - Prob. 95QAPCh. 17 - Prob. 96QAPCh. 17 - Prob. 97QAPCh. 17 - Prob. 98QAPCh. 17 - Prob. 99QAPCh. 17 - Prob. 100QAPCh. 17 - Prob. 101QAPCh. 17 - Prob. 102QAPCh. 17 - Prob. 103QAPCh. 17 - Prob. 104QAPCh. 17 - Prob. 105QAPCh. 17 - Prob. 106QAPCh. 17 - Prob. 107QAPCh. 17 - Prob. 108QAP
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- Give a reason why a dielectric material increases capacitance compared with what it would be with air between the plates of a capacitor. How does a dielectric material also allow a greater voltage to be applied to a capacitor? (The dielectric thus increases C and permits a greater V.)arrow_forwardGive the reason why a dielectric material increases capacitance compared with what it would be with air between the plates of a capacitor. What is the independent reason that a dielectric material also allows a greater voltage to be applied to a capacitor? (The dielectric thus increases C and permits a greater V.)arrow_forwardNerve cells in the human body and in other animals are modeled as very long cylindrical capacitors. Portions of some nerves are covered with a layer of fat known as myelin, which functions as the dielectric ( = 7) between two plates in the cylindrical capacitor model. The potential difference between the inner and outer walls of myelin in resting nerve cells is roughly Vinner Vouter = 70 mV. Find the linear charge density on the inner (positive) plate. Hint: Use the result of Example 27.8.arrow_forward
- Calculate the equivalent capacitance between points a and b in Figure P26.77. Notice that this system is not a simple series or parallel combination. Suggestion: Assume a potential difference v between [joints a and b. Write expressions for vab in terms of the charges and capacitances for the various possible pathways from a to b and require conservation of charge for those capacitor plates that are connected to each other.arrow_forwardReview. A storm cloud and the ground represent the plates of a capacitor. During a storm, the capacitor has a potential difference of 1.00 x 108 V between its plates and a charge of 50.0 C. A lightning strike delivers 1.00% of the energy of the capacitor to a tree on the ground. How much sap in the tree can be boiled away? Model the sap as water initially at 30.0C. Water has a specific heat of 4 186 J/kg C, a boiling point of 100C, and a latent heat of vaporization of 2.26 X 106 J/kg.arrow_forwardA parallel-plate capacitor is disconnected from a batter, and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same? (a) C (b) Q (c) E between the plates (d) V (e) PECarrow_forward
- Discuss how the energy stored in an empty but charged capacitor changes when a dielectric is inserted if (a) the capacitor is isolated so that its charge does not change; (b) the capacitor remains connected to a battery so that the potential difference between its plates does not change.arrow_forwardA 1.00-F capacitor is charged by being connected across a 10.0-V battery. It is then disconnected from the battery and connected across an uncharged 2.00-F capacitor. Determine the resulting charge on each capacitor.arrow_forwardDetermine the equivalent capacitance of the combination shown in Figure P20.87. Suggestion: Consider the symmetry involved. Figure P20.87arrow_forward
- Sketch the equipotential lines for the two equal positive charges shown in Figure 19.27. Indicate the direction of increasing potential. Figure 19.27 The electric field near two equal positive charges is directed away from each of the charges.arrow_forward(i) A battery is attached to several different capacitors connected in parallel. Which of the following statements is true? (a) All capacitors have the same charge, and the equivalent capacitance is greater than the capacitance of any of the capacitors in the group, (b) The capacitor with the largest capacitance carries the smallest charge, (c) The potential difference across each capacitor is the same, and the equivalent capacitance is greater than any of the capacitors in the group. (d) The capacitor with the smallest capacitance carries the largest charge. (e) The potential differences across the capacitors are the same only if the capacitances are the same, (ii) The capacitors are reconnected in series, and the combination is again connected to the battery. From the same choices, choose the one that is true.arrow_forwardSketch the equipotential lines a long distance from the charges shown in Figure 19.28. Indicate the direction of increasing potential. Figure 19.28 The electric field near two charges.arrow_forward
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