24 Pages

#### MasteringPhysics_Chapter27

Course: MASTERING PHYS, Spring 2009

School: Kettering

Word Count: 7547

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LAW 27.1. GAUSS'S V i a l i e : As discussed in Section 27.1, the symmetry of the electric field must match the symmetry of the charge distribution. In particular, the electric field of a cylindrically symmetric charge distribution cannot have a component parallel to the cylinder axis. Also, the electric field of a cylindrically symmetric charge distribution cannot have a component tangent to the circular cross...

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Kettering - MASTERING - PHYS
CURRENT AND CONDUCTIVITY0 28.1. Solve: The wire's cross-sectional area is A = mz = ~ ( 1 . x 10&quot; m)' = 3.1415 x lo4 m2, and the electron current through this wire is 2.0 X loi9 s-l . Using Table 28.1 for the electron density of iron and Equation 28.3, th
Kettering - MASTERING - PHYS
THEELECTRIC POTENTIAL29.1. Model: The mechanical energy of the proton is conserved. A parallel plate capacitor has a uniformelectric field. Visualize:After Before*. .,v=oE`*II01.ox2.0The figure shows the before-and-after pictorial represe
Kettering - MASTERING - PHYS
POTENTIAL AND FIELD30.1. Solve: The potential difference AV between two points in space is9AV = V(xf) - V(x,) = - I E , dxx,where x is the position along a line from point i to point f. When the electric field is uniform,xrAV = - E x j d . =-E,&amp;X,
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
THE MAGNETIC FIELD32.1. Model: A magnetic field is caused by an electric current.Visualize: Please refer to Figure Ex32.1. Solve: Because the north poles of the magnets point counterclockwise, the magnetic force is counterclockwise. When you point finge
Kettering - MASTERING - PHYS
ELECTROMAGNETIC INDUCTION33.1. Model: Assume the magnetic field is uniform.Visualize: Please refer to Figure Ex33.1. Since a motional emf was developed the field must be perpendicular to V .The positive charges experienced a magnetic force to the left.
Kettering - MASTERING - PHYS
ELECTROMAGNETIC AND WAVES FIELDSw.1. Model: The net magnetic flux over a closed surface is zero. Visualize: Please refer to Ex34.1. Solve: Because we can't enclose a &quot;net pole&quot; within a surface, Q, = f B . d i = 0 . Since the magnetic field isuniform ov
Kettering - MASTERING - PHYS
AC CIRCUITS35.1. Model: A phasor is a vector that rotates counterclockwise around the origin at angular frequency w. Solve: (a) Refemng to the phasor in Figure Ex35.1, the phase angle isU? = 180'n rad - 30&quot; = 150 x -= 2.618 rad180&quot;w=2*618rad = 175 r
Kettering - MASTERING - PHYS
MasteringPhysics9/24/08 11:13 PMAssignment Display Mode:View Printable Answers[ Print ]Physys 202 Fall08HW1Due at 11:00pm on Wednesday, September 17, 2008View Grading DetailsElectric Fields and ForcesDescription: Electric forces and electric fie
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
MasteringPhysics10/19/08 6:51 PMAssignment Display Mode:View Printable Answers[PPhysys 202 Fall08HW5Due at 11:00pm on Wednesday, October 15, 2008View Grading DetailsProblem 26.36Description: (a) Determine the currents I_1, I_2, and I_3 in the fi
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200722. Gauss' LawAssignment is due at 2:00am on Wednesday, January 31, 2007Credit for problems submitted late wil
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200723a. Electric PotentialAssignment is due at 2:00am on Wednesday, January 31, 2007Credit for problems submitted
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200723b. Electric PotentialAssignment is due at 2:00am on Wednesday, February 7, 2007Credit for problems submitted
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200724. Capacitance and DielectricsAssignment is due at 2:00am on Wednesday, February 7, 2007Credit for problems s
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200725. Current, Resistance, and Electromagnetic ForceAssignment is due at 2:00am on Wednesday, February 14, 2007C
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200726. DC CircuitsAssignment is due at 2:00am on Wednesday, February 21, 2007Credit for problems submitted late w
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200727. Magnetic Field and Magnetic ForcesAssignment is due at 2:00am on Wednesday, February 28, 2007Credit for pr
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print View04/19/2007 02:22 PM[ Assignment View ][ PriElisfri 2, vor 200728. Sources of Magnetic FieldAssignment is due at 2:00am on Wednesday, March 7, 2007Credit for problems submitted late will decrease to 0% after th
Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print View04/19/2007 02:22 PM[ Assignment View ][ PriElisfri 2, vor 200729a. Electromagnetic InductionAssignment is due at 2:00am on Wednesday, March 7, 2007Credit for problems submitted late will decrease to 0% after t
Kettering - MASTERING - PHYS
http:/session.masteringphysics.com/myct04/19/2007 05:02 PM[ Assignment View ][ Print ]Elisfri 2, vor 200730. InductanceAssignment is due at 2:00am on Wednesday, March 14, 2007Credit for problems submitted late will decrease to 0% after the deadline
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
http:/session.masteringphysics.com/myct04/19/2007 05:03 PM[ Assignment View ][ Print ]Elisfri 2, vor 200732. Electromagnetic WavesAssignment is due at 2:00am on Wednesday, March 28, 2007Credit for problems submitted late will decrease to 0% after t
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
MasteringPhysics: Assignment Print Viewhttp:/session.masteringphysics.com/myct/assignmentPrint?assig.[ Assignment View ]Elisfri 2, vor 200734. Geometric Optics and Optical InstrumentsAssignment is due at 2:00am on Wednesday, January 17, 2007Credit f
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
Electric Potential Electric Potential Energy versus Electric Potential Gravitational Force and Potential Energy First we review the force and potential energy of an object of mass gravitational field that points downward (in the near the earth's surface.
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
24.40. Model: Assume thin lenses and treat each as a simple magnifier with M = 25cm/f .Visualize: Equation 24.10 gives the magnification of a microscope.M = mobjM eye = L 25cm f obj f eyeSolve: (a) The more powerful lens (4) with the shorter focal len
Kettering - MASTERING - PHYS
22.2. Model: Two closely spaced slits produce a double-slit interference pattern.Visualize: The interference pattern looks like the photograph of Figure 22.3(b). It is symmetrical, with the m = 2 fringes on both sides of and equally distant from the cent
Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
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Kettering - MASTERING - PHYS
27.10. Model: The rod is thin, so assume the charge lies along a line. Visualize:Solve: The force on charge q is F = qErod . From Example 27.3, the electric field a distance r from the center of a charged rod isErod = Thus, the force is1Q4 0 r r 2 +
Kettering - MASTERING - PHYS
28.4. Model: The electric flux flows out of a closed surface around a region of space containing a netpositive charge and into a closed surface surrounding a net negative charge. Visualize: Please refer to Figure EX28.4. Let A be the area in m2 of each o
Kettering - MASTERING - PHYS
29.28. Model: The electric potential at the dot is the sum of the potentials due to each charge.Visualize: Please refer to Figure EX29.28. Solve: The electric potential at the dot isV=1 q1 1 q2 1 q3 + + 4 0 r1 4 0 r2 4 0 r3 5.0 109 C 5.0 109 C q = ( 9
Kettering - MASTERING - PHYS
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