Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Textbook Question
Chapter 26, Problem 3PLA
The points where the potential is the same (in three-dimensional space) lie on a surface. (a) True (b) False
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Chapter 26 Solutions
Physics Laboratory Manual
Ch. 26 - Electric field lines are drawn (a) from positive...Ch. 26 - The points where the potential is the same (in...Ch. 26 - The points where the potential is the same (in...Ch. 26 - The relationship between the direction of the...Ch. 26 - Why are the measured equipotentials lines instead...Ch. 26 - If two electrodes have a source of potential...Ch. 26 - Why is it important to center the electrodes on...Ch. 26 - In the performance of this laboratory, what is the...Ch. 26 - On what basis are you to decide how many points to...
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- A filament running along the x axis from the origin to x = 80.0 cm carries electric charge with uniform density. At the point P with coordinates (x = 80.0 cm, y = 80.0 cm), this filament creates electric potential 100 V. Now we add another filament along the y axis, running from the origin to y = 80.0 cm, carrying the same amount of charge with the same uniform density. At the same point P, is the electric potential created by the pair of filaments (a) greater than 200 V, (b) 200 V, (c) 100 V, (d) between 0 and 200 V, or (e) 0?arrow_forwardThe electric potential inside a charged spherical conductor of radius R is given by V = keQ/R, and the potential outside is given by V = keQ/R, Using Er = dV/dr, derive the electric field (a) inside and (b) outside this charge distribution.arrow_forwardA metallic sphere of radius 2.0 cm is charged with +5.0C charge, which spreads on the surface of the sphere uniformly. The metallic sphere stands on an insulated stand and is surrounded by a larger metallic spherical shell, of inner radius 5.0 cm and outer radius 6.0 cm. Now, a charge of 5.0C is placed on the inside of the spherical shell, which spreads out uniformly on the inside surface of the shell. If potential is zero at infinity, what is the potential of (a) the spherical shell, (b) the sphere, (c) the space between the two, (d) inside the sphere, and (e) outside the shell?arrow_forward
- For the arrangement described in Problem 26, calculate the electric potential at point B, which lies on the perpendicular bisector of the rod a distance b above the x axis. Figure P20.26arrow_forwardThe charge density on a disk of radius R = 12.0 cm is given by = ar, with a = 1.40 C/m3 and r measured radially outward from the origin (Fig. P26.45). What is the electric potential at point A, a distance of 40.0 cm above the disk? Hint: You will need to integrate the nonuniform charge density to find the electric potential. You will find a table of integrals helpful for performing the integration.arrow_forwardAn electric potential exists in a region of space such that V = 8x4 2y2 + 9z3 and V is in units of volts, when x, y, and z are in meters. a. Find an expression for the electric field as a function of position. b. What is the electric field at (2.0 m, 4.5 m, 2.0 m)?arrow_forward
- Two large charged plates of charge density 30C/m2 face each other at a separation of 5.0 mm. (a) Find the electric potential everywhere, (b) An electron is released from rest at the negative plate; with what speed will it strike the positive plate?arrow_forwardThe three charged particles in Figure P20.11 are at the vertices of an isosceles triangle (where d = 2.00 cm). Taking q = 7.00 C, calculate the electric potential at point A, the midpoint of the base. Figure P20.11arrow_forwardA point charge Q is concentric with two spherical shells with radii a and b, and charges −2Q and 3Q, respectively. Assuming that the electric potential at infinity is zero, what is the electric potential at point P, located a distance r from the center?arrow_forward
- The superposition of three potentialsIn a xy plane, we fix a 1uC particle A at the origin and a 2uC particle B at (x=4m; y=0). (a) Calculate the electric potential in (x=4m; y=3m). (b) Where should a C particle of -4uC be placed so that the potential at (x=4m;y=3m) is zero?arrow_forwardShow that electric potential for a shell whose radius is R, has charge q uniformly distributed on its entire surface, is the same as electric potential for a conductor (Solid) has radius R and charge q.arrow_forwardFind the potential at the origin when there is a uniform line charge of 5 nanocoulomb formed by the intersection of the planes x=2 and y=4.arrow_forward
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