1 Physics And Measurement 2 Motion In One Dimension 3 Vectors 4 Motion In Two Dimensions 5 The Laws Of Motion 6 Circular Motion And Other Applications Of Newton’s Laws 7 Energy Of A System 8 Conservation Of Energy 9 Linear Momentum And Collisions 10 Rotation Of A Rigid Object About A Fixed Axis 11 Angular Momentum 12 Static Equilibrium And Elasticity 13 Universal Gravitation 14 Fluid Mechanics 15 Oscillatory Motion 16 Wave Motion 17 Sound Waves 18 Superposition And Standing Waves 19 Temperature 20 The First Law Of Thermodynamics 21 The Kinetic Theory Of Gases 22 Heat Engines, Entropy, And The Second Law Of Thermodynamics 23 Electric Fields 24 Gauss’s Law 25 Electric Potential 26 Capacitance And Dielectrics 27 Current And Resistance 28 Direct-current Circuits 29 Magnetic Fields 30 Sources Of The Magnetic Field 31 Faraday’s Law 32 Inductance 33 Alternating Current Circuits 34 Electromagnetic Waves 35 The Nature Of Light And The Principles Of Ray Optics 36 Image Formation 37 Wave Optics 38 Diffraction Patterns And Polarization 39 Relativity Chapter25: Electric Potential
Chapter Questions Section: Chapter Questions
Problem 25.1QQ: In Figure 24.1, two points and are located within a region in which there is an electric field.... Problem 25.2QQ: The labeled points in Figure 24.4 are on a series of equipotential surfaces associated with an... Problem 25.3QQ: In Figure 24.8b, take q2, to be a negative source charge and q1 to be a second charge whose sign can... Problem 25.4QQ: In a certain region of space, the electric potential is zero everywhere along the x axis. (i) From... Problem 25.1OQ: In a certain region of space, the electric field is zero. From this fact, what can you conclude... Problem 25.2OQ: Consider the equipotential surfaces shown in Figure 25.4. In this region of space, what is the... Problem 25.3OQ: (i) A metallic sphere A of radius 1.00 cm is several centimeters away from a metallic spherical... Problem 25.4OQ: The electric potential at x = 3.00 m is 120 V, and the electric potential at x = 5.00 m is 190 V.... Problem 25.5OQ: Rank the potential energies of the lour systems of particles shown in Figure OQ25.5 from largest to... Problem 25.6OQ: In a certain region of space, a uniform electric field is in the x direction. A particle with... Problem 25.7OQ: Rank the electric potentials at the four points shown in Figure OQ25.7 from largest to smallest. Problem 25.8OQ: An electron in an x-ray machine is accelerated through a potential difference of 1.00 104 V before... Problem 25.9OQ: Rank the electric potential energies of the systems of charges shown in Figure OQ25.9 from largest... Problem 25.10OQ: Four particles are positioned on the rim of a circle. The charges on the particles are +0.500C,... Problem 25.11OQ: A proton is released from rest at the origin in a uniform electric field in the positive x direction... Problem 25.12OQ: A particle with charge -40.0 nC is on the x axis at the point with coordinate x = 0. A second... Problem 25.13OQ: A filament running along the x axis from the origin to x = 80.0 cm carries electric charge with... Problem 25.14OQ: In different experimental trials, an electron, a proton, or a doubly charged oxygen atom (O--), is... Problem 25.15OQ: A helium nucleus (charge = 2e. mass = 6.63 10_27kg) traveling at 6.20 101 in/s enters an electric... Problem 25.1CQ: What determines the maximum electric potential to which the dome of a Van de Graaff generator can be... Problem 25.2CQ: Describe the motion of a proton (a) after it is released from rest in a uniform electric field.... Problem 25.3CQ: When charged particles are separated by an infinite distance, the electric potential energy of the... Problem 25.4CQ: Study Figure 23.3 and the accompanying text discussion of charging by induction. When the grounding... Problem 25.5CQ: Distinguish between electric potential and electric potential energy. Problem 25.6CQ: Describe the equipotential surfaces for (a) an infinite line of charge and (b) a uniformly charged... Problem 25.1P: Oppositely charged parallel plates are separated by 5.33 mm. A potential difference of 600 V exists... Problem 25.2P: A uniform electric field of magnitude 250 V/m is directed in the positive x direction. A +12.0-C... Problem 25.3P: (a) Calculate the speed of a proton that is accelerated from rest through an electric potential... Problem 25.4P: How much work is done (by a battery, generator, or some other source of potential difference) in... Problem 25.5P: A uniform electric field of magnitude 325 V/m is directed in the negative y direction in Figure... Problem 25.6P: Starting with the definition of work, prove that at every point on an equipotential surface, the... Problem 25.7P: An electron moving parallel to the x axis has an initial speed of 3.70 10b m/s at the origin. Its... Problem 25.8P: (a) Find the electric potential difference Ve required to stop an electron (called a stopping... Problem 25.9P: A particle having charge q = +2.00 C and mass m = 0.010 0 kg is connected to a string that is L =... Problem 25.10P: Review. A block having mass m and charge + Q is connected to an insulating spring having a force... Problem 25.11P: An insulating rod having linear charge density = 40.0 C/m and linear mass density = 0.100 kg/m is... Problem 25.12P: (a) Calculate the electric potential 0.250 cm from ail electron, (b) What is the electric potential... Problem 25.13P: Two point charges are on the y axis. A 4.50-C charge is located at y = 1.25 cm, and a -2.24-C charge... Problem 25.14P: The two charges in Figure P25.14 are separated by d = 2.00 cm. Find the electric potential at (a)... Problem 25.15P: Three positive charges are located at the corners of an equilateral triangle as in Figure P24.7.... Problem 25.16P: Two point charges Q1 = +5.00 nC and Q2 = 3.00 nC are separated by 35.0 cm. (a) What is the electric... Problem 25.17P: Two particles, with charges of 20.0 11C and -20.0 nC, are placed at the points with coordinates (0,... Problem 25.18P: The two charges in Figure P24.12 are separated by a distance d = 2.00 cm, and Q = +5.00 nC. Find (a)... Problem 25.19P: Given two particles with 2.00-C charges as shown in Figure P25.19 and a particle with charge q =... Problem 25.20P: At a certain distance from a charged particle, the magnitude of the electric field is 500 V/m and... Problem 25.21P: Four point charges each having charge Q are located at the corners of a square having sides of... Problem 25.22P: The three charged particles in Figure P25.22 are at the vertices of an isosceles triangle (where d =... Problem 25.23P: A particle with charge +q is at the origin. A particle with charge 2q is at x = 2.00 m on the x... Problem 25.24P: Show that the amount of work required to assemble four identical charged particles of magnitude Q at... Problem 25.25P: Two particles each with charge +2.00 C are located on the x axis. One is at x = 1.00 m, and the... Problem 25.26P: Two charged particles of equal magnitude are located along the y axis equal distances above and... Problem 25.27P: Four identical charged particles (q = +10.0 C) are located on the corners of a rectangle as shown in... Problem 25.28P: Three particles with equal positive charges q are at the corners of an equilateral triangle of side... Problem 25.29P: Five particles with equal negative charges q are placed symmetrically around a circle of radius R.... Problem 25.30P: Review. A light, unstressed spring has length d. Two identical particles, each with charge q, are... Problem 25.31P: Review. Two insulating spheres have radii 0.300 cm and 0.500 cm, masses 0.100 kg and 0.700 kg, and... Problem 25.32P: Review. Two insulating spheres have radii r1 and r2, masses m1 and m2, and uniformly distributed... Problem 25.33P: How much work is required to assemble eight identical charged particles, each of magnitude q, at the... Problem 25.34P: Four identical particles, each having charge q and mass m, are released from rest at the vertices of... Problem 25.35P: In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which... Problem 25.36P: Figure P24.22 represents a graph of the electric potential in a region of space versus position x,... Problem 25.37P: The potential in a region between x = 0 and x = 6.00 m V = a + bx, where a = 10.0 V and b = -7.00... Problem 25.38P: An electric field in a region of space is parallel to the x axis. The electric potential varies with... Problem 25.39P: Over a certain region of space, the electric potential is V = 5x 3x2y + 2yz2. (a) Find the... Problem 25.40P: Figure P24.23 shows several equipotential lines, each labeled by its potential in volts. The... Problem 25.41P: The electric potential inside a charged spherical conductor of radius R is given by V = keQ/R, and... Problem 25.42P: It is shown in Example 24.7 that the potential at a point P a distance a above one end of a... Problem 25.43P: Consider a ring of radius R with the total charge Q spread uniformly over its perimeter. What is the... Problem 25.44P: A uniformly charged insulating rod of length 14.0 cm is bent into the shape of a semicircle as shown... Problem 25.45P: A rod of length L (Fig. P24.25) lies along the x axis with its left end at the origin. It has a... Problem 25.46P: For the arrangement described in Problem 25, calculate the electric potential at point B, which lies... Problem 25.47P: A wire having a uniform linear charge density is bent into the shape shown in Figure P24.27. Find... Problem 25.48P: The electric field magnitude on the surface of an irregularly shaped conductor varies from 56.0 kN/C... Problem 25.49P: How many electrons should be removed from an initially uncharged spherical conductor of radius 0.300... Problem 25.50P: A spherical conductor has a radius of 14.0 cm and a charge of 26.0 C. Calculate the electric field... Problem 25.51P: Electric charge can accumulate on an airplane in flight. You may have observed needle-shaped metal... Problem 25.52P: Lightning can be studied with a Van de Graaff generator, which consists of a spherical dome on which... Problem 25.53AP: Why is the following situation impossible? In the Bohr model of the hydrogen atom, an electron moves... Problem 25.54AP: Review. In fair weather, the electric field in the air at a particular location immediately above... Problem 25.55AP: Review. From a large distance away, a particle of mass 2.00 g and charge 15.0 C is fired at 21.0 m/s... Problem 25.56AP: Review. From a large distance away, a particle of mass m1, and positive charge q1 is fired at speed ... Problem 25.57AP: The liquid-drop model of the atomic nucleus suggests high-energy oscillations of certain nuclei can... Problem 25.58AP: On a dry winter day, you scuff your leather-soled shoes across a carpet and get a shock when you... Problem 25.59AP: The electric potential immediately outside a charged conducting sphere is 200 V, and 10.0 cm farther... Problem 25.60AP: (a) Use the exact result from Example 24.4 to find the electric potential created by the dipole... Problem 25.61AP: Calculate the work that must be done on charges brought from infinity to charge a spherical shell of... Problem 25.62AP: Calculate the work that must be done on charges brought from infinity to charge a spherical shell of... Problem 25.63AP: The electric potential everywhere on the xy plane is V=36(x+1)2+y245x2+(y2)2 where V is in volts and... Problem 25.64AP: Why is the following situation impossible? You set up an apparatus in your laboratory as follows.... Problem 25.65AP: From Gauss's law, the electric field set up by a uniform line of charge is E=(20r)r where r is a... Problem 25.66AP: A uniformly charged filament lies along the x axis between x = a = 1.00 m and x = a + = 3.00 m as... Problem 25.67AP: The thin, uniformly charged rod shown in Figure P24.41 has a linear charge density . Find an... Problem 25.68AP: A GeigerMueller tube is a radiation detector that consists of a closed, hollow, metal cylinder (the... Problem 25.69AP: Review. Two parallel plates having charges of equal magnitude but opposite sign are separated by... Problem 25.70AP: When an uncharged conducting sphere of radius a is placed at the origin of an xyz coordinate system... Problem 25.71CP: An electric dipole is located along the y axis as shown in Figure P24.48. The magnitude of its... Problem 25.72CP: A solid sphere of radius R has a uniform charge density and total charge Q. Derive an expression... Problem 25.73CP: A disk of radius R (Fig. P24.49) has a nonuniform surface charge density = Cr, where C is a... Problem 25.74CP: Four balls, each with mass m, are connected by four nonconducting strings to form a square with side... Problem 25.75CP: (a) A uniformly charged cylindrical shell with no end caps has total charge Q, radius R, and length... Problem 25.76CP: As shown in Figure P25.76, two large, parallel, vertical conducting plates separated by distance d... Problem 25.77CP: A particle with charge q is located at x = R, and a particle with charge 2q is located at the... Problem 25.12P: (a) Calculate the electric potential 0.250 cm from ail electron, (b) What is the electric potential...
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How much work is done (by a battery, generator, or some other source of potential difference) in moving Avogadro’s number of electrons from an initial point where the electric potential is 9.00 V to a point where the electric potential is -5.00 V? (The potential in each case is measured relative to a common reference point.)
Definition Definition Number of atoms/molecules present in one mole of any substance. Avogadro's number is a constant. Its value is 6.02214076 × 10 23 per mole.
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