Du
eAp
r
i
l1
8
,
2
0
1
6
N!turns!of!wire!
2. An air-filled torus is wound with N turns of wire. It has inner
radius a and outer radius b and a circular cross section of
radius (b-a)/2.
a. Calculate i
Physics 435
Discussion 6
Solution
September 28, 2015
Exam review:
1. A slab of thickness 2d in the z-direction (!d z +d ) and
(
( )
d"
z"
2
infinite in x and y contains a charge density (z) = 0 1
.
!
1. Discussion 1: Divergence Theorem
(1) Griffiths 1.33
+ 3zx
We will do the easier part first (i.e. integrate the divergence of v = xy
x + 2yz y
z over
the volume). We first need to compute v which i
Physics 435
Discussion 5
Solution
September 21, 2015
1. This is similar to the lecture example.
An infinitely long rectangular pipe runs parallel to the z-axis (from - to +). Three sides
are grounded
Physics 435
Discussion 4
Solution
September 14, 2015
1. Find the general solution to Laplaces equation in cylindrical coordinates, assuming that
1 V 1 2V
there is no z-dependence. That is, solve this
Physics 435
Discussion 3
Solution
September 7, 2015
1. Poissons equation is very important in many areas of physics. Schrdingers equation in
quantum mechanics is a version of this equation. So, it is
Physics 435
Discussion 2
Solution
August 31, 2015
1. Consider an extension of the example on p. 14 of my lecture notes. Now, each of the objects
is described by its velocity, v , as well as its mass,
Physics 435
Discussion 1
August 24, 2015
Math review.
1. The dot (inner) product.
a. Calculate the dot product of these two vectors: v1 = (1,3,5) , v2 = ( 2,4,6 ) . .
The dot product is: v1.v2 = v1xv2
INSTRUCTOR'S
SOLUTIONS
MANUAL
INTRODUCTION to
ELECTRODYNAMICS
Third Edition
David J. Griffiths
Errata
Instructors Solutions Manual
Introduction to Electrodynamics, 3rd ed
Author: David Griths
Date: Se
CYCLEOF
MAGNETISATION &
HYSTERESIS LOSS
TOPICS TO BE DISCUSSED
MAGNETIC
INDUCTION(B)
MAGNETISING FIELD(H)
INTENSITY OF MAGNETISATION(I)
CYCLE OF MAGNETISATION
ENERGY DISSIPATION DUE TO
HYSTERESIS
CALC
Phys 325 Midterm #1 Fall 2014
Fall 2014 Physics 325 Midterm Exam #1
Thursday Oct 2, 11:00 am 12:30 pm
This is a closed book exam. No use of calculators or any other electronic devices is allowed. Work
Apr
i
l4,2016
3. An infinitely long wire lies on the z-axis and carries current I in the +z-direction. Calculate
the torque and force on a magnetic dipole.
!
!
a. Do the problem in Cartesian coordinat
Physics 435
Homework 4
Solution
Due September 21, 2015
1. A point charge, q, is placed inside a hollow, grounded spherical shell of radius
R, a distance a away from the center, as shown. There is no o
Physics 435
Due May 2, 2016
Homework 14
Solution
1. The current in a long solenoid (end view is shown) increases linearly with time, so the flux is
proportional to t: = t . Two ideal voltmeters (infin
Physics 435
Due January 25, 2016
Homework 1
This is some math review.
Each problem is worth five points.
In this course, all HW problems will have the same value unless stated otherwise.
!
1. Calculat
Physics 435
Homework 8
Solution
1. A grounded conducting sphere of radius R1 is wrapped in a
spherical shell of dielectric (r) of outer radius R2. It is placed
in an otherwise uniform external electri
Physics 435
Due February 8, 2016
Homework 3
Solution
NOTE: Problem 4 is worth 10 points.
1. Use Gausss law to find the electric field inside and outside an infinitely long wire of radius
S. The (volum