College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 16, Problem 4P
Cathode ray tubes (CRTs) used in old-style televisions have been replaced by modern LCD and LED screens. Part of the CRT included a set of accelerating plates separated by a distance of about 1.50 cm. If the potential difference across the plates was 25.0 kV, find the magnitude of the electric field in the region between the plates.
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Chapter 16 Solutions
College Physics
Ch. 16.1 - If an electron is released from rest in a uniform...Ch. 16.1 - If a negatively charged particle is placed at rest...Ch. 16.1 - Figure 16.3 is a graph of an electric potential as...Ch. 16.1 - If a negatively charged particle is placed at...Ch. 16.2 - Consider a collection of charges in a given region...Ch. 16.2 - A spherical balloon contains a positively charged...Ch. 16.3 - An electron initially at rest accelerates through...Ch. 16.6 - A capacitor is designed so that one plate is large...Ch. 16.7 - A parallel-plate capacitor is disconnected from a...Ch. 16.8 - A fully charged parallel-plate capacitor remains...
Ch. 16.8 - Consider a parallel-plate capacitor with a...Ch. 16 - A proton is released from rest in a uniform...Ch. 16 - An electron is released from rest in a uniform...Ch. 16 - Figure CQ16.3 shows equipotential contours in the...Ch. 16 - Rank the potential energies of the four systems of...Ch. 16 - A parallel-plate capacitor with capacitance C0...Ch. 16 - An air-filled parallel-plate capacitor with...Ch. 16 - Choose the words that make each statement correct,...Ch. 16 - Why is it important to avoid sharp edges or points...Ch. 16 - Explain why, under static conditions, all points...Ch. 16 - If you are given three different capacitors C1,...Ch. 16 - (a) Why is it dangerous to touch the terminals of...Ch. 16 - The plates of a capacitor are connected to a...Ch. 16 - Rank the electric potentials at the four points...Ch. 16 - If you were asked to design a capacitor in which...Ch. 16 - Is it always possible to reduce a combination of...Ch. 16 - Explain why a dielectric increases the maximum...Ch. 16 - A uniform electric field of magnitude 375 N/C...Ch. 16 - A proton is released from rest in a uniform...Ch. 16 - A potential difference of 90.0 mV exists between...Ch. 16 - Cathode ray tubes (CRTs) used in old-style...Ch. 16 - A constant electric field accelerates a proton...Ch. 16 - A point charge q = +40.0 C moves from A to B...Ch. 16 - Oppositely charged parallel plates are separated...Ch. 16 - (a) Find the potential difference VB required to...Ch. 16 - An ionized oxygen molecule (O+2) at point A has...Ch. 16 - On planet Tehar, the free-fall acceleration is the...Ch. 16 - An electron is at the origin, (a) Calculate the...Ch. 16 - The two charges in Figure P16.12 are separated by...Ch. 16 - (a) Find the electric potential, taking zero at...Ch. 16 - Three charges are situated at corners of a...Ch. 16 - Two point charges Q1 = +5.00 nC and Q2 = 3.00 nC...Ch. 16 - Three identical point charges each of charge q are...Ch. 16 - The three charges in Figure P16.17 are at the...Ch. 16 - A positive point charge q = +2.50 nC is located at...Ch. 16 - A proton is located at the origin, and a second...Ch. 16 - A proton and an alpha particle (charge = 2e, mass...Ch. 16 - A tiny sphere of mass 8.00 g and charge 2.80 nC is...Ch. 16 - The metal sphere of a small Van de Graaff...Ch. 16 - In Rutherfords famous scattering experiments that...Ch. 16 - Four point charges each haring charge Q are...Ch. 16 - Calculate the speed of (a) an electron and (b) a...Ch. 16 - An electric field does 1.50 103 eV of work on a...Ch. 16 - An alpha particle, which has charge 3.20 1019 C,...Ch. 16 - In the classical model of a hydrogen atom, an...Ch. 16 - Consider the Earth and a cloud layer 8.0 102 m...Ch. 16 - (a) When a 9.00-V battery is connected to the...Ch. 16 - An air-filled parallel-plate capacitor has plates...Ch. 16 - Air breaks down and conducts charge as a spark if...Ch. 16 - An air-filled capacitor consists of two parallel...Ch. 16 - A 1-megabit computer memory chip contains many...Ch. 16 - a parallel-plate capacitor with area 0.200 m2 and...Ch. 16 - A small object with a mass of 350. g carries a...Ch. 16 - Given a 2.50-F capacitor, a 6.25-F capacitor, and...Ch. 16 - Two capacitors, C1 = 5.00 F and C2 = 12.0 F, are...Ch. 16 - Find (a) the equivalent capacitance of the...Ch. 16 - Two capacitors give an equivalent capacitance of...Ch. 16 - For the system of capacitors shown in Figure...Ch. 16 - Consider the combination of capacitors in Figure...Ch. 16 - Find the charge on each of the capacitors in...Ch. 16 - Three capacitors are connected to a battery as...Ch. 16 - A 25.0-F capacitor and a 40.0-F capacitor are...Ch. 16 - (a) Find the equivalent capacitance between points...Ch. 16 - A 1.00-F capacitor is charged by being connected...Ch. 16 - Four capacitors are connected as shown in Figure...Ch. 16 - A 12.0 V battery is connected to a 4.50 F...Ch. 16 - Two capacitors, C1 = 18.0 F and C2 = 36.0 F, are...Ch. 16 - A parallel-plate capacitor has capacitance 3.00 F....Ch. 16 - Each plate of a 5.00 F capacitor stores 60.0 C of...Ch. 16 - The voltage across an air-filled parallel-plate...Ch. 16 - (a) How much charge can be placed on a capacitor...Ch. 16 - Determine (a) the capacitance and (b) the maximum...Ch. 16 - A parallel-plate capacitor has plates of area A =...Ch. 16 - A model of a red blood cell portrays the cell as a...Ch. 16 - When a potential difference of 150. V is applied...Ch. 16 - Three parallel-plate capacitors are constructed,...Ch. 16 - For the system of four capacitors shown in Figure...Ch. 16 - A parallel-plate capacitor with a plate separation...Ch. 16 - Two capacitors give an equivalent capacitance of...Ch. 16 - A parallel-plate capacitor is constructed using a...Ch. 16 - Two charges of 1.0 C and 2.0 C are 0.50 m apart at...Ch. 16 - Find the equivalent capacitance of the group of...Ch. 16 - A spherical capacitor consists of a spherical...Ch. 16 - The immediate cause of many deaths is ventricular...Ch. 16 - When a certain air-filled parallel-plate capacitor...Ch. 16 - Capacitors C1 = 6.0 F and C2 = 2.0 F are charged...Ch. 16 - Two positive charges each of charge q are fixed on...Ch. 16 - Metal sphere A of radius 12.0 cm carries 6.00 C of...Ch. 16 - An electron is fired at a speed v0 = 5.6 106 m/s...
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- Find an expression for the magnitude of the electric field at point A mid-way between the two rings of radius R shown in Figure P24.30. The ring on the left has a uniform charge q1 and the ring on the right has a uniform charge q2. The rings are separated by distance d. Assume the positive x axis points to the right, through the center of the rings. FIGURE P24.30 Problems 30 and 31.arrow_forwardA circular ring of charge with radius b has total charge q uniformly distributed around it. What is the magnitude of the electric field at the center of the ring? (a) 0 (b) keq/b2 (c) keq2/b2 (d) keq2/b (e) none of those answersarrow_forwardAn electron with a speed of 3.00 106 m/s moves into a uniform electric field of magnitude 1.00 103 N/C. The field lines are parallel to the electrons velocity and pointing in the same direction as the velocity. How far does the electron travel before it is brought to rest? (a) 2.56 cm (b) 5.12 cm (c) 11.2 cm (d) 3.34 m (e) 4.24 marrow_forward
- For each sketch of electric field lines in Figure P24.8, compare the magnitude of the electric field in region A to the magnitude of the electric field in region B. FIGURE P24.8arrow_forwardA point charge of 4.00 nC is located at (0, 1.00) m. What is the x component of the electric field due to the point charge at (4.00, 2.00) m? (a) 1.15 N/C (b) 0.864 N/C (c) 1.44 N/C (d) 1.15 N/C (e) 0.864 N/Carrow_forwardFour charged particles are at rest at the corners of a square (Fig. P26.14). The net charges are q1 = q2 = +2.65 C and q3 = q4 = 5.15 C. The distance between particle 1 and particle 3 is r13 = 1.75 cm. a. What is the electric potential energy of the four-particle system? b. If the particles are released from rest, what will happen to the system? In particular, what will happen to the systems kinetic energy?arrow_forward
- A particle with charge q on the negative x axis and a second particle with charge 2q on the positive x axis are each a distance d from the origin. Where should a third particle with charge 3q be placed so that the magnitude of the electric field at the origin is zero?arrow_forwardReview. Two insulating spheres have radii 0.300 cm and 0.500 cm, masses 0.100 kg and 0.700 kg, and uniformly distributed charges 2.00 C and 3.00 C. They are released from rest when their centers are separated by 1.00 m. (a) How fast will each be moving when they collide? (b) What If? If the spheres were conductors, would the speeds be greater or less than those calculated in part (a)? Explain.arrow_forwardFigure P24.16 shows three charged particles arranged in the xy plane at the coordinates shown, with qA = qB = 3.30 nC and qC = 4.70 nC. What is the electric field due to these particles at the origin? FIGURE P24.16arrow_forward
- Problems 72, 73, and 74 are grouped. 72. A Figure P26.72 shows a source consisting of two identical parallel disks of radius R. The x axis runs through the center of each disk. Each disk carries an excess charge uniformly distributed on its surface. The disk on the left has a total positive charge Q, and the disk on the right has a total negative charge Q. The distance between the disks is 3R, and point A is 2R from the positively charged disk. Find an expression for the electric potential at point A between the disks on the x axis. Approximate any square roots to three significant figures. FIGURE P26.72 Problems 72, 73, and 74.arrow_forwardFour charged particles are at rest at the corners of a square (Fig. P26.14). The net charges are q1 = q2 = 2.65 C and q3 = q4 = 5.15 C. The distance between particle 1 and particle 3 is r13 = 1.75 cm. a. What is the electric potential energy of the four-particle system? b. If the particles are released from rest, what will happen to the system? In particular, what will happen to the systems kinetic energy as their separations become infinite? FIGURE P26.14 Problems 14, 15, and 16.arrow_forwardA Two positively charged particles, each with charge Q, are held at positions (a, 0) and (a, 0) as shown in Figure P23.73. A third positively charged particle with charge q is placed at (0, h). a. Find an expression for the net electric force on the third particle with charge q. b. Show that the two charges Q behave like a single charge 2Q located at the origin when the distance h is much greater than a. Figure P23.73 Problems 73 and 74.arrow_forward
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