Essential University Physics
4th Edition
ISBN: 9780134988566
Author: Wolfson, Richard
Publisher: Pearson Education,
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Textbook Question
Chapter 21, Problem 16E
In the figure with GOT IT? 21.2, take E = 1.75 kN/C and s = 125 cm. Find the flux through faces B and C of cubes (a) and (b).
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A flat sheet is in the shape of a rectangle with sides of lengths 0.400 m and 0.600 m. The sheet is immersed in a uniform electric field of magnitude 55.0 N/C that is directed at 20 degrees from the plane of the sheet (Figure 1).
Find the magnitude of the electric flux through the sheet.
Express your answer with the appropriate units.
When a piece of paper is held with one face perpendicular to a uniform electric field the flux through it is 185 N.m2/C. When the paper is turned such that the angle
between the surface of the paper and the electric field is 39°, find the flux through the paper. Express your answer in units of N.m2/C with one decimal place. Note
that your answer should be positive.
Find the flux in N.m².C-1 of a constant electric field E = (5.3180x10^3) i +
(-5.514x10^3)j + (-1.5880x10^3) k N/C, passing through an area defined by the
area vector A = (-4.7990x10^0) i + (-7.69x10^0) j + (4.2900x10^-1) k m².
Chapter 21 Solutions
Essential University Physics
Ch. 21.1 - Which figure represents the electric field of a...Ch. 21.2 - The figure shows a cube of side s in a uniform...Ch. 21.3 - A spherical surface surrounds an isolated positive...Ch. 21.4 - A spherical shell carries charge Q distributed...Ch. 21.5 - (1) If you're close to a finite line of charge...Ch. 21.6 - (1) If you're close to a finite line of charge...Ch. 21 - Can electric field lines ever cross? Why or why...Ch. 21 - The electric flux through a closed surface is...Ch. 21 - Under what conditions can the electric flux...Ch. 21 - Right field lines emerge from a closed surface...
Ch. 21 - In Gausss law, EdA=q0does the field E necessarily...Ch. 21 - The field of an infinite charged line decreases as...Ch. 21 - Why cant you use Gausss law to determine the field...Ch. 21 - Youre sitting inside an uncharged, hollow...Ch. 21 - Does Gausss law apply to a spherical Gaussian...Ch. 21 - The electric field of a flat sheet of charge is...Ch. 21 - In Fig. 21.32, the magnitude of the middle charge...Ch. 21 - Charges +2q and q are near each other. Sketch some...Ch. 21 - The net charge shown in Fig. 21.33 is +Q. Identify...Ch. 21 - A flat surface with area 2.0 m2 is in a uniform...Ch. 21 - The electric field on the surface of a...Ch. 21 - In the figure with GOT IT? 21.2, take E = 1.75...Ch. 21 - In Fig. 21.8, take the half-cylinders radius and...Ch. 21 - A sock comes out of the dryer with a trillion...Ch. 21 - Whats the electric flux through the closed...Ch. 21 - Interpret This problem involves applying Gauss's...Ch. 21 - A 2.6-C charge is at the center of a cube 7.5 cm...Ch. 21 - The electric field at the surface of a...Ch. 21 - A solid sphere 25 cm in radius carries 14C,...Ch. 21 - A 15-nC point charge is at the center of a thin...Ch. 21 - The electric field strength outside a charge...Ch. 21 - An electron close to a large, Hat sheet of charge...Ch. 21 - Find the field produced by a uniformly charged...Ch. 21 - What surface charge density on an infinite sheet...Ch. 21 - A rod 50 cm long and 1.0 cm in radius carries a...Ch. 21 - Whats the approximate field strength 1 cm above a...Ch. 21 - The disk in Fig. 21.22 has area 0.14 m2 and is...Ch. 21 - What is the electric field strength just outside...Ch. 21 - A net charge of 5.0 C is applied on one side of a...Ch. 21 - A positive point charge q lies at the center of a...Ch. 21 - A total charge of 18 C is applied to a thin,...Ch. 21 - Example 21.2: A positive point charge +q is at the...Ch. 21 - Example 21.2: A point charge q is at the center of...Ch. 21 - Example 21.2: A long, thin wire carrying uniform...Ch. 21 - Example 21.2: A long, thin wire canning uniform...Ch. 21 - Example 21.4: A long, straight wire carries a...Ch. 21 - Example 21.4: A long, thin rod carries charge...Ch. 21 - Example 21.4: An infinitely long rod carries a...Ch. 21 - Example 21.4: A 75.0-cm-long rod of diameter 2.54...Ch. 21 - Whats the flux through the hemispherical open...Ch. 21 - An electric field is given byE=E0(y/a)k, where E0...Ch. 21 - The electric field in a certain region is given by...Ch. 21 - A study shows that mammalian red blood cells...Ch. 21 - Positive charge is spread uniformly over the...Ch. 21 - A solid sphere 2.0 cm in radius carries a uniform...Ch. 21 - A point charge of 2Q is at the center of a...Ch. 21 - Prob. 51PCh. 21 - A spherical shell of radius R and negligible...Ch. 21 - A spherical shell 30 cm in diameter carries 85 C...Ch. 21 - A thick, spherical shell of inner radius a and...Ch. 21 - A long, thin wire carrying 5.6 nC/m runs down the...Ch. 21 - A long, solid rod of radius R carries a uniform...Ch. 21 - A solid rod 2.54 cm in diameter and 1.50 m long...Ch. 21 - If you painted positive charge on the floor, what...Ch. 21 - A charged slab extends infinitely in two...Ch. 21 - A solid sphere 10 cm in radius carries a 40-C...Ch. 21 - A nonconducting square plate 75 cm on a side...Ch. 21 - A 250-nC point charge is placed at the center of...Ch. 21 - An irregular conductor containing an irregular,...Ch. 21 - You measure the electric field strength at points...Ch. 21 - A point charge q is at the center of a spherical...Ch. 21 - A point charge q is at the center of a spherical...Ch. 21 - The volume charge density inside a solid sphere of...Ch. 21 - Figure 21.37 shows a rectangular box with sides 2a...Ch. 21 - The charge density within a charged sphere of...Ch. 21 - Calculate the electric fields in Example 21.2...Ch. 21 - A solid sphere of radius R carries a nonuniform...Ch. 21 - Problem 76 of Chapter 13 explored what happened to...Ch. 21 - An infinitely long solid cylinder of radius R...Ch. 21 - A solid sphere of radius R carries a uniform...Ch. 21 - Repeal Problem 59 for the case where the charge...Ch. 21 - Coaxial cables are widely used with audio-visual...Ch. 21 - A coaxial cable carries equal but opposite charges...Ch. 21 - How does the electric field between the conductors...Ch. 21 - Coaxial cables are widely used with audio-visual...
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- Find the flux in N.m2.C-1 of a constant electric field E = (5.85x10^3) i + (2.712x10^3) j + (-7.4910x10^3) k N/C, passing through an area defined by the area vector A = (3.633x10^0) i + (1.5050x10^0) j + (-1.9920x10^0) k m2.arrow_forwardFind the flux of F=−zi+yj−xk out of a sphere of radius 4 centered at the origin. Hint: Your answer will involve π .arrow_forwardA cube has sides of length L = 0.340 m . It is placed with one corner at the origin as shown in the figure (Figure 1). The electric field is not uniform but is given by E ⃗ =( -4.30 N/(C⋅m) )x i ^ +( 3.25 N/(C⋅m) )z k ^ . Figure 1 of 1 Part A Find the electric flux through each of the six cube faces S 1 , S 2 , S 3 , S 4 , S 5 , and S 6 . Enter your answers in ascending order separated by commas. Φ 1 , Φ 2 , Φ 3 , Φ 4 , Φ 5 , Φ 6 Φ 1 , Φ 2 , Φ 3 , Φ 4 , Φ 5 , Φ 6 Part B Find the total electric charge inside the cube.arrow_forward
- The normal vector of a disk (r = 10 cm) is parallel to a uniform electric field (E = 2.0 x 10^3 N/C). What is the flux through the disk? 63 N?m^2/C 0 54 N?m^2/C 45 N?m^2/Carrow_forwardCharges q1 and q2 are placed on the y-axis at y = 0 and y = 26.1 m, respectively. If q1 = -50 pC and q2= +61.1 pC, determine the net flux through a spherical surface (radius = 8.5 m) centered on the origin. Round your answer to 2 decimal places.arrow_forwardA circular plane, with a radius of 2.2 meters, is immersed in an E-field with a magnitude of 700 N/C. The field makes an angle of 20° with the plane. What is the magnitude of the flux through the plane?arrow_forward
- Two large rectangular aluminum plates of area 150 cm2 face each other with a separation of 3 mm between them. The plates are charged with equal amount of opposite charges, ±20 μC . The charges on the plates face each other. Find the flux through a circle of radius 3 cm between the plates when the normal to the circle makes an angle of 5° with a line perpendicular to the plates. Note that this angle can also be given as 180° + 5°.arrow_forwardProblem 6: A circular loop of radius R= 2 cm is centered at the origin where there is a constant electric field E = Egi + Eyj. For this problem, assume E,= 32 N/C and E, = 156 N/C. Part (a) What is the flux through the loop, in Nm2/C, when the loop is oriented so that its normal vector is in the x-direction? Part (b) What is the flux through the loop, in Nm2/C, when the loop is oriented so that its normal vector is in the negative y-direction? = Part (c) What is the flux through the loop, in Nm2/C, when the loop is oriented so that its normal vector is in the positive z-direction?arrow_forwardThe figure below shows a disk of radius 0.50 m is oriented with its normal unit vector în making an angle 0 to uniform electric field E with magnitude 10. x 103 N/C. The electric flux is calculated to be 2.0 x 103 N-m²/C. What is the angle 0 that this disk normal unit vector în makes with the electric field E in r = 0.50m 0 = ? E O 75° 65° none of the given choices O 60° 80°arrow_forward
- An electric flux of 3.45 x 10^6 Nm^2/C was measured through a rectangle with sides of 7.00 m and 5.00 m. The angle between the electric field vector and the area vector to the rectangular plane is 30.0 degrees. What is the electric field that passes through the rectangle?arrow_forwardConsider a hemisphere of 5 cm radius that contains a total charge of 7 x 10-7 C. The flux through the rounded part of the surface is 9 x 104 N.m²/C. What is the flux through the flat base of the sphere?arrow_forwardA cylinder of diameter 1.72 m is in a region where the electric field is as shown in the figure below. If E1 = 38.0 N/C and E2 = 20.1 N/C, what is the net flux through the two end faces of the cylinder? Note that the diagram is not to scale. N · m2/Carrow_forward
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