Solution You have a selection of protons

Solution You have a selection

You have a selection of protons and electrons

Solution You have a

selection of protons and electrons

Solution You have

Solution

Category: | General |

Words: | 1050 |

Amount: | $12 |

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Paper instructions

25.C.7
(7.00) You have a selection of protons and electrons. You want to place them at the corners of a square so that the electric field and the electric potential at the center of the square are both zero. Check off all of the shown configurations that will produce this result.
a
b
c
d
25.3.2
(5.00) A 6.3 ?C point charge and a ?1.7 ?C point charge are separated by a distance of 0.00035 m. What is the electric potential energy of this system?
25.8.2
(5.00) In a science fiction story, a microscopic black hole is given an enormous positive charge by firing an un-neutralized ion drive exhaust (consisting of positively charged xenon ions) into it for six months. The idea behind the charging process is to be able to confine and manipulate this dangerous object with powerful electric fields. Suppose the charge on the black hole is 5740 C. At what distance from it is the electric potential equal to 1060 V?
25.12.1
(5.00) The dipole moment of a water molecule is 6.2×10?30 C·m. What is the electric potential due to this dipole at a distance of 1.40e-5 m, in a direction 60° from the direction of the moment vector?
25.17.1
(5.00) Xenon ions with a mass of 2.20×10?25 kg and charge +e are accelerated between the plates of an ion drive rocket engine to an exhaust velocity of 43,200 m/s. (a) What is the potential difference between the plates? (b) If the potential difference is doubled, what is the velocity of the engine exhaust?
25.19.1
(5.00) A point charge of 8.40 mC is surrounded by an equipotential surface with a radius of 0.284 m. What is the electric potential on the surface?
26.C.1
(5.00) A thick book is suspended in a uniform nonzero electric field. The field is parallel to the plane of the book's front cover, and the flux through the spine (which has less area than the cover) is positive. Which is greater: the flux through the spine, or the flux through the front cover?
26.C.2
(7.00) Suppose a positive charge is at the center of a cube. Another positive charge is outside the cube, on a line perpendicular to a face of a cube, that passes through its center. Which face of the cube has the greatest (positive) net flux through it?
The face farthest from the external charge
The face closest to the external charge
26.C.3
(5.00) Which of the following are Gaussian surfaces?
An infinitely thin flat sheet
An open tube with infinitely thin walls
A capped bottle of root beer with infinitely thin walls
26.1.1
(5.00) A cube with 1 m edges is in a uniform electric field of magnitude 17 N/C. The electric field intersects the top of the cube at a 30° angle to the normal, and is parallel to two faces of the cube. The area vector for each face of the cube points outward. (a) What is the relationship between the electric flux through the top face and the electric flux through the bottom face? (b) Calculate the net electric flux through the entire surface of the cube.
(a) (0/1 submissions used)
(b) (0/6 submissions used) (N/C)·m2
26.1.5
(5.00) The electric field E = (5.7, 2.7, 8.1) N/C passes through a square surface whose area vector is A = (1.7, ?3.4, 0.55) m2. What is the electric flux ?E through the surface?
26.3.2
(5.00) Using the information given in the second interactive problem in Section 26.3, what field strength will produce the desired flux? Test your answer using the simulation.
26.3.3
(5.00) Using the information given in the third interactive problem in Section 26.3, what is the area required to create the desired flux? Test your answer using the simulation.
26.3.4
(5.00) Using the information given in the fourth interactive problem in Section 26.3, what is the angle required to create the desired flux? Test your answer using the simulation.
26.5.2
(5.00) A cherry with charge 0.00000310 C is embedded in an uncharged cube of jello. Find the flux going through the walls of the jello.
26.9.2
(5.00) Use the information given in the second interactive problem in Section 26.9 to calculate (a) the flux and (b) the hidden charge. Test your answer using the simulation.
26.9.1
(5.00) Use the information given in the first interactive problem in Section 26.9 to calculate the charge in (a) the left sphere and (b) the right sphere. Test your answer using the simulation.
28.5.1
(5.00) Use the information given in the interactive problem in Section 28.5 to answer the following question. What must the separation of the plates be to achieve a 2.00 nC charge on a plate? Test your answer using the simulation.
28.13.1
(5.00) 0.0030 J of energy are stored in a parallel-plate capacitor whose plates each have area 0.30 m2 and are 1.5 mm apart. What is the electric field energy density between the plates?
28.16.3
(5.00) A tiny capacitor found in a clock radio uses a dielectric with a dielectric constant of 262. The electric field strength between the "plates" of this capacitor is 6.11×105 V/m. If the dielectric were replaced with a vacuum, what would the strength of this electric field become, assuming the charges on the plates remain the same?
28.A.4
(5.00) The earliest capacitors, called "Leyden jars" were made by wrapping conducting metal foil inside and outside glass jars (which have a dielectric constant of 5.20). If the outer radius of the jars was 5.00 cm and the glass was 0.500 cm thick, how tall would the jar have to be to reach a capacitance of 21.0 nF? Assume foil is only wrapped around the sides of the jar, forming a cylindrical shape. The jar is rather tall; the height explains why capacitor design has progressed.
32.6.1
(7.00) A 0.150 T magnetic field B crosses the xy plane perpendicular to the x axis and at an angle of 70.0° to the y axis. A square surface with sides of length 7.00 m lies mainly in the xy plane, but a 1.50 m section of it at one end is bent 90° in the negative z direction. What is the total magnetic flux through the surface? Choose directions for the area vectors so that the flux through each surface is positive.
32.7.5
(7.00) A rectangular wire loop measures 5.00 cm by 8.00 cm, and lies in the plane of the page. It has a resistance of 3.00 ?. In this region, there exists a uniform magnetic field pointing into the page. Its magnitude, in Tesla, varies according to the equation B(t) = 10.0 ? 0.300t2. (a) Calculate the magnitude of the magnetic flux through the loop at t = 2.50 s. (b) How much current is flowing in the loop at t = 2.50 s? (c) At t = 2.50 s, which way is the current flowing?
32.11.1
(7.00) A uniform magnetic field in a region of space changes at a rate of 5.000e-3 T/s. What is the strength of the induced electric field on a circle of radius 40.0 cm, that is located within that region, and which lies in the plane that is normal to the magnetic field?
33.12.2
(5.00) Use the oscilloscope in the simulation in the interactive problem in Section 33.12 to determine (a) Imax, (b) ?Vmax and (c) the frequency f of the second signal.
33.12.1
(5.00) Use the oscilloscope in the simulation in the interactive problem in Section 33.12 to determine (a) Imax, (b) ?Vmax and (c) the frequency f of the first signal.
33.12.2
(5.00) Use the oscilloscope in the simulation in the interactive problem in Section 33.12 to determine (a) Imax, (b) ?Vmax and (c) the frequency f of the second signal.
33.30.3
(7.00) An AC circuit has a 1.00×10?11 F capacitor in parallel with a 3.00×10?11 F capacitor and a 6.00×10?2 H inductor in parallel with a 2.00×10?2 H inductor as shown in the picture. What is the resonant frequency of this circuit? Hint: Combine the inductors in the same manner as you would resistors.
33.31.1
(5.00) The emf of an AC circuit has an rms value of 120 V. (a) What is the maximum positive emf? (b) What is the most negative emf?
33.33.1
(5.00) What is the instantaneous power, at a time of 0.00550 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V maximum potential difference operating at 5000 rad/s?

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