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Workshop

PHY 217: Electricity and Magnetism I
Prof. S. Teitel stte@pas.rochester.edu ---- Fall 2016

## Workshop

On this page I will post the problems discussed in workshop, and their solutions. All problem numbers from Griffiths refer to the 4th edition of the textbook.

• Week of Sept 4 - review vector algebra and gradients

Griffiths Example 1.2
Griffiths Problem 1.5
Griffiths Problem 1.7
Griffiths Problem 1.13
Solutions
• Week of Sept 11 - computing the electric field

Griffiths Problem 2.4: Electric field above a square loop of uniform line charge
Electric field along the axis of a cylindrical shell with uniform surface charge
Solutions
• Week of Sept 18 - practice with vectors and vector integrals
Griffiths Problem 1.55
Griffiths Problem 1.62 a-d
Solutions
• Week of Sept 25 - scalar and vector potentials and Gauss' Law
Griffiths Problem 1.50
Griffiths Problem 2.9
Griffiths Problem 2.13, but more general
Solutions
• Week of Oct 2 - electrostatic potential and electrostatic energy
Griffiths Problem 2.15
Griffiths Problem 2.23
Griffiths Problem 2.37
Solutions
• Week of Oct 9 - fields at charged surfaces, electrostatic pressure, interactions with conductors
Find the electric field E and electrostatic potential V for a long hollow cylindrical tube which carries a uniform surface charge density σ. Explicitly compute the discontinuity in E, and the discontinuity in the normal derivative of V, at the surface of the cylinder, and show that these results are consistent with the general results of Griffiths Eq. (2.33) and (2.36).
Griffiths Problem 2.41
Griffiths Problem 2.40
Solutions
• Week of Oct 23 - image charge method
Charge in between two conducting planes
Solutions
• Week of Nov 13
Griffiths Problem 3.21 - potential for a charged conducting sphere in a uniform applied electric field
Multipole expansion for a planar square with uniform charge density
Solutions
• Week of Nov 27
Griffiths Problem 4.19
Griffiths Problem 4.20
Griffiths Problem 4.26
Griffiths Exercise 4.7 -- done somewhat differently than in the text
Griffiths Problem 4.39
Solutions
• Week of Dec 4
Griffiths Problem 5.4 -- forces on current loops
Griffiths Problem 5.11 -- using superposition
Griffiths Problem 5.14 -- solving Ampere's Law with current distribution
Griffiths Exercise 5.25 -- vector potential for a uniform B
Solutions