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1. 2. 3. 4. 5. Two charges of 16 pC and -65 pC are inside a cube with sides that are of 0.17 m length. Determine the net electric flux through the surface of the cube. {image} {image} {image} {image} {image}. 1. 2. 3. 4. 5.
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1. 2. 3. 4. 5. Two charges of 16 pC and -65 pC are inside a cube with sides that are of 0.17 m length. Determine the net electric flux through the surface of the cube. • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. Charges {image} and {image} are placed on the x axis at {image} and {image} respectively. If {image} and {image} determine the net flux through a spherical surface (radius = 1.3 m) centered on the origin. • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. A uniform linear charge density of 3.4 nC/m is distributed along the entire x axis. Consider a spherical (radius = 4.5 cm) surface centered on the origin. Determine the electric flux through this surface. • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. The xy plane is "painted" with a uniform surface charge density which is equal to {image} Consider a spherical surface with a 4.5-cm radius that has a point in the xy plane as its center. What is the electric flux through that part of the spherical surface for which {image} • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. Charge of uniform surface density {image} is distributed on a spherical surface (radius = 2.4 cm). What is the total electric flux through a concentric spherical surface with a radius of 4.8 cm? • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. A charge of 0.79 nC is placed at the center of a cube that measures 3.4 m along each edge. What is the electric flux through one face of the cube? • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. The electric field in the region of space shown is given by {image} where y is in m. What is the magnitude of the electric flux through the top face of the cube shown? {applet} • {image} • {image} • {image} • {image} • {image}
Charge of a uniform density {image} is distributed over the entire xy plane. A charge of uniform density {image} is distributed over the parallel plane defined by {image} Determine the magnitude of the electric field for any point with {image} • 0.67 kN/C • 0.33 kN/C • 0.34 kN/C • 0.79 kN/C • 0.88 kN/C
Two infinite parallel surfaces carry uniform charge densities of {image} and {image} What is the magnitude of the electric field at a point between the two surfaces? • 63 N/C • 36 N/C • 98 N/C • 74 N/C • 86 N/C
Charge of uniform density {image} is distributed over the xy plane, and charge of uniform density {image} is distributed over the yz plane. What the magnitude of the resulting electric field at any point not in either of the two charged planes? • 30 N/C • 42 N/C • 15 N/C • 41 N/C • 20 N/C
A long nonconducting cylinder (radius = 15 cm) has a charge of uniform density {image} distributed throughout its column. Determine the magnitude of the electric field 22 cm from the axis of the cylinder. • 26 N/C • 38 N/C • 23 N/C • 51 N/C • 35 N/C
A long nonconducting cylinder (radius = 4.4 mm) has a nonuniform volume charge density given by {image} where {image} and r is the distance from the axis of the cylinder. What is the magnitude of the electric field at a point 2.4 mm from the axis? • 2.1 N/C • 2.9 N/C • 4.8 N/C • 7.3 N/C • 2.4 N/C
Charge of uniform linear density (4.4 nC/m) is distributed along the entire x axis. Determine the magnitude of the electric field on the y axis at {image} • 42 N/C • 58 N/C • 40 N/C • 54 N/C • 78 N/C
Charge of uniform density {image} is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1.2 mm and 3.8 mm. Determine the magnitude of the electric field at a point which is 2.5 mm from the symmetry axis. • 7.8 N/C • 1.0 N/C • 2.3 N/C • 5.8 N/C • 7.0 N/C
Charge of uniform density {image} is distributed over a cylindrical surface (radius = 1.1 cm), and a second coaxial surface (radius = 3.5 cm) carries a uniform charge density of {image} Determine the magnitude of the electric field at a point 1.8 cm from the symmetry axis of the two surfaces. • 1.4 kN/C • 4.4 kN/C • 7.1 kN/C • 2.3 kN/C • 3.6 kN/C
A solid nonconducting sphere (radius = 12 cm) has a charge of uniform density {image} distributed throughout its volume. Determine the magnitude of the electric field 16 cm from the center of the sphere. • 89 N/C • 37 N/C • 79 N/C • 82 N/C • 42 N/C
A charge of 7.0 pC is distributed uniformly on a spherical surface (radius = 3.2 cm), and a second charge of {image} 1.2 pC is distributed uniformly on a concentric spherical surface (radius = 4.2 cm). Determine the magnitude of the electric field 4.8 cm from the center of the two surfaces. • 23 N/C • 63 N/C • 27 N/C • 66 N/C • 39 N/C
A point charge (5.1 pC) is located at the center of a spherical surface (radius = 2.6 cm), and a charge of 2.6 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge. • 0.46 kN/C • 0.69 kN/C • 0.68 kN/C • 0.63 kN/C • 0.44 kN/C
A 3.4-pC point charge is placed at the center of a hollow (inner radius = 1.7 cm, outer radius = 3.3 cm) conducting sphere which has a net charge of 3.4 pC. Determine the magnitude of the electric field at a point which is 4.9 cm from the point charge. • 25 N/C • 13 N/C • 45 N/C • 17 N/C • 14 N/C
A long straight metal rod has a radius of 2.5 mm and a surface charge of density {image} Determine the magnitude of the electric field 3.2 mm from the axis. • 26 N/C • 43 N/C • 50 N/C • 21 N/C • 16 N/C
1. 2. 3. 4. 5. The field just outside the surface of a long conducting cylinder which has a 3.0-cm radius points radially outward and has a magnitude of 180 N/C. What is the charge density on the surface of the cylinder? • {image} • {image} • {image} • {image} • {image}
A long cylindrical conductor (radius = 1.6 mm) carries a charge density of 4.0 pC/m and is inside a coaxial, hollow, cylindrical conductor (inner radius = 3.2 mm, outer radius = 4.1 mm) that has a total charge of {image} 7.6 pC/m. What is the magnitude of the electric field 2.5 mm from the axis of these conductors? • 29 N/C • 18 N/C • 26 N/C • 38 N/C • zero
1. 2. 3. 4. 5. A point charge of 6.3 nC is placed at the center of a hollow spherical conductor (inner radius = 1.2 cm, outer radius = 2.0 cm) which has a net charge of -2.0 nC. Determine the resulting charge density on the inner surface of the conducting sphere. • {image} • {image} • {image} • {image} • {image}
A small metal sphere is suspended from the conducting cover of a conducting metal ice bucket by a non-conducting thread. The sphere is given a positive charge before the cover is placed on the bucket. The bucket is tilted by means of a nonconducting material so that the charged sphere touches the inside of the bucket. Which statement is correct? • The positive charge spreads over the outside surface of the bucket and cover. • The positive charge remains on the metal sphere. • The positive charge spreads equally over the inside and outside surfaces of the bucket and cover. • The positive charge spreads over the inside surface of the bucket and cover. • The positive charge spreads equally over the sphere and the inside and outside surfaces of the bucket and cover.
An uncharged metal sphere is placed on an insulating puck on a frictionless table. While being held parallel to the table, a rod with a charge q is brought close to the sphere, but does not touch it. As the rod is brought in, the sphere _____ . • moves toward the rod • moves away from the rod • remains at rest • moves perpendicular to the velocity vector of the rod • moves upward off the puck
1. 2. 3. 4. 5. Two concentric imaginary spherical surfaces of radius R and 3R respectively surround a positive point charge {image} located at the center of the surfaces. When compared to the electric flux {image} through the surface of radius R, what is the electric flux {image} through the surface of radius 3R? • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. Which one of the following cannot be a statement of Gauss's Law for some physical situation? • {image} • {image} • {image} • {image} • {image}
1. 2. 3. 4. 5. An uncharged spherical conducting shell surrounds a charge {image} at the center of the shell. Find the charges on the inner and outer surfaces of the shell respectively. • {image} • {image} • {image} • {image} • {image}
A constant electric field {image} is present throughout a region of space that includes the plane bounded by the x and y axes and the lines {image} and {image} Find the electric flux at the plane's surface, in N/C. • 0 • 0.17 • 17 • 33 • 120
1. 2. 3. 4. 5. A spaceship encounters a single plane of charged particles, with the charge per unit area equal to {image} Find the magnitude and direction of the electric field a short distance above the plane. • {image} perpendicular • {image} parallel • {image} perpendicular • {image} parallel • {image} perpendicular
In a charge-free region of space, a closed container is placed in an electric field. A requirement for the total electric flux through the surface of the container to be zero is that _____. • the field must be uniform • the container must be symmetric • the container must be oriented in a certain way • the requirement does not exist-the total electric flux is zero no matter what
1. 2. 3. 4. 5. Consider the charge distribution shown in the figure below. {image} The charges contributing to the total electric flux through surface {image} are _____. • {image} only • {image} only • {image} and {image} • all four charges • none of the charges
Your little brother likes to rub his feet on the carpet and then touch you to give you a shock. While you are trying to escape the shock treatment, you discover a hollow metal cylinder in your basement, large enough to climb inside. In which of the following cases will you not be shocked? • You climb inside the cylinder, making contact with the inner surface, and your charged brother touches the outer metal surface. • Your charged brother is inside touching the inner metal surface and you are outside, touching the outer metal surface. • Both of you are outside the cylinder, touching its outer metal surface but not touching each other directly.