**Fall Semester 2017**

**Dr. Gregory W. Clark**

Department of Physics

Office: SCIC112, Phone: 982 - 5071

**Laboratory Information
Things to know for exam 1
Things to know for exam 2**

**Homework assignments:**

*** HW 18 ** [Due Tuesday, 21 Nov 2017]

- Read: Griffiths 5.1 - 5.3
- Work Griffiths problems 5.4, 5.5, 5.6, 5.14

*** HW 18 ** [Due Friday, 17 Nov 2017]

- Read: Griffiths 5.1 - 5.3
- Work Griffiths problems 3.19 (use a trig identity on
*cos(3θ)*to write it in terms of*P*and_{3}*P*), 3.28, 3.46, 5.1, 5.2, 5.3_{1}

*** HW 17 **
[Due: T, 14 Nov 2017]

- The HW assignment is in this document: HW17 - with AQ on Sep Vars and Fourier Series.f17

*** HW 16 **[Not Collected! Please work thse out before the exam! Solutions are in binder (soon!)!]

- Read: Griffiths 3.4, 5.1 - 5.3 {for the week after the exam}
- Work Griffiths problems 2.43, 3.15 (For the situation described, perform a separation of variables and determine the solutions to the differential equations - much like what we did today in class. Don't worry about applying the boundary conditions or doing the actual problem as written.), 5.3 (Lorentz force law practice!)

*** HW 15 **
[Due: T, 31 Oct 2017]

- Read: Griffiths 3.3-3.4
- Work Griffiths problems 3.7, 3.10, 3.11 (for 3.11, work it out up to and including the sentence "What is the force on
*q*?") - AQ1: See handout: HW15 - with AQ on potential maps.f17.pdf << Put all of these problems in one spreadsheet, each problem under a different tab. Name each tab by the problem number in Hayt (
*e.g,*Hayt 9, Hayt 11). Name the spreadsheet*PHYS301HW15AQ1.xyz.xlsx*where*xyz*= your initials and email me the file by 11:59 pm on the due date.

*** HW 14 **
[Due: F, 27 Oct 2017]

- Read: Griffiths 3.2, 3.3
- Work Griffiths problems 2.30, 2.38, 2.39, 2.40, 3.3

*** HW 13 **
[Due: T, 24 Oct 2017]

- Read: Griffiths 3.1 - 3.2
- Work Griffiths problems 2.21, 2.22, 2.23 (use equation 2.21 for these three - clearly specify the path of integration for each.), 2.25, 3.2

*** HW 12 **
[Due: F, 20 Oct 2017]

- Read: Griffiths 2.3 - 2.5
- Work Griffiths problems 2.15, 2.16, 2.17, 2.20, 2.50 (on this one, be careful taking the divergence!)

*** HW 11 **
[Due: T, 17 Oct 2017]

- Read: Griffiths 2.4 - 2.5
- Work Griffiths problems 2.7, 2.9, 2.10, 2.11, 2.12, 2.14 [Justify
__all__steps while using Gauss' Law for any problems!] - AQ1: Find the electric field due to a uniformly charged ring of radius
*R*(as in figure 2.9 of the text), but at an off-axis point. For the field point, choose a generic point in the*x - z*plane [at the point (*x*)]._{o},0,z_{o}

*** HW 10 **
[Due: F, 13 Oct 2017]

- Read: Griffiths 2.3
- Work Griffiths problems 2.2 (for 2.2, also find the expression for large z using the binomial expansion), 2.3, 2.4, 2.5, 2.6

*** HW 9 **
[Due: T, 10 Oct 2017]

- Read: Griffiths 2.1, 2.2
- Work Griffiths problems 1.39, 1.45, 1.49 (just use one method: the Dirac delta function!), 1.54, 2.1 (a & b)

*** HW 8 **
[Not Collected! Please work thse out before the exam! Solutions are in binder!]

- Read: Griffiths 2.1, 2.2 {for the week after the exam}
- Work Griffiths problems 1.44, 1.47 (a & b), 1.50 (a), 2.9 [for part (b) calculate the charge just one way, using the expression for
*Q*two equations above equation (2.14) on p. 70 of the text]_{encl} - AQ1: Compute the divergence and curl of the vector field given in problem 1.54 (spherical coordinates).

*** HW 7 **
[Due: T, 26 Sept 2017]

- Read: Griffiths 1.5, 1.6 & 2.1; listen to PenCasts 02 & 03 [on Canvas; listen before our next Tuesday class!]
- Work Griffiths problems 1.42 (derive these with geometric arguments!), 1.43, 1.58
- AQ1: Compute the gradient (cylindrical coordinates) of
*T(r, φ, z) = 5 z*^{2}r^{3}sin(φ).

*** HW 6 **
[Due: F, 22 Sept 2017]

- Read: Griffiths 1.5 - 1.6 and 2.1; listen to Pencast00 and PenCast 01 [on Canvas]
- Work Griffiths problems 1.34, 1.35, 1.55
- Additional Questions:
- AQ1: Write down Faraday's Law in differential form. In
*electrostatics*, the magnetic field (and flux) is constant so the right hand side of Faraday's law is zero (see eqn. 2.20 in the text). Now look at the two possible electric fields given in problem 2.20 (p. 80 of the text). Determine which, if any, of these is a possible*electrostatic*field. - AQ2: Write down Gauss' Law of Magnetism in differential form. Look at the two vector (electric) fields given in problem 2.20. Could vector fields with either of these forms be magnetic fields? Justify your answer!

*** HW 5 **
[Due: T, 19 Sept 2017]

- Read: Griffiths 1.3 - 1.4
- Work Griffiths problems 1.29, 1.30, 1.32 (b) & (c), 1.56 (just the line integral, for now!)

*** HW 4 **
[Due: F, 15 Sept 2017]

- Read: Griffiths 1.3, 1.4
- Work Griffiths problems 1.20, 1.25 (a), 1.26 (a - c), 1.27, 1.28 [For these last two, prove for
*any*arbitrary function!], 1.32 (a)

*** HW 3 ** [Due: T, 12 Sept 2017]

- Read: Griffiths 1.3
- Work Griffiths problems 1.15, 1.16, 1.18
- Additional question:
**AQ1**: Compute the following sums (*B. is extra credit!*). Write out all terms explicitly and then justify any that you set to zero.- A.
- B.

*** HW 2 **
**[Due: F, 8 Sept 2017] **

- Read: Griffiths 1.3
- Work Griffiths problems 1.5, 1.7, 1.11, 1.12, 1.13 (a & b)

- Read: Griffiths 1.1 – 1.2 + Advert (pp. xi – xv)
- Work Griffiths problems 1.3, 1.4
- Do additional questions: Complete the handout on "
*Vectors and Vector Produc*ts"

__Additional resources:__

PPT Slides Class use of electronic devices

Errata (corrections) to the textbook: Griffiths Errata ED4a Griffiths Errata ED4b

General Physics Homework ChecklistGeneral Physics I Knowsheet General Physics II Knowsheet

If you would like to purchase *Maple 16* at the
student discount rate, you can do so from the
MapleSoft website.
To get the discounted price, you will need a Promotion Code. This code is available on the CANVAS site for this course.

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