1. Which one of the following statements best describes a cognitive-developmental perspective
of child development?
a.
Children are naturally disposed to think about their environment in particular
wa
Electricity and Magnetism I (P331)
Homework 8
Due: Friday, December 11, 4:00 PM
The nal exam will be Friday, December 18 from 12:30 PM - 2:30 PM in Swain West 219.
1. In 1996 astronauts on the space s
Electricity and Magnetism I (P331)
Homework 8
Due: Wednesday, November 18, 4:00 PM
The next exam will be Friday, November 20 in class.
1. Youve probably seen the demonstration device pictured below. P
Electricity and Magnetism I (P331)
Homework 8
Due: Wednesday, November 11, 4:00 PM
1. Suppose that in a region of space the vector potential is given by A = k . What is the current density?
2. At the
Electricity and Magnetism I (P331)
Homework 7
Due: Wednesday, November 4, 4:00 PM
1. A Hall probe is a device for measuring magnetic elds. In a typical device a current I ows in a ribbon
of n-type dop
Electricity and Magnetism I (P331)
Homework 6
Due: Wednesday, October 21, 4:00 PM
The next exam will be Friday, October 23 in class.
1. Two concentric conducting spherical shells, with radii a and 2a,
Electricity and Magnetism I (P331)
Homework 5
Due: Thursday, October 15, 4:00 PM
1. (a) Show that the electric eld of a pure dipole can be written in a coordinate-free form as
E(r) =
11
[3(p ) p] .
rr
Electricity and Magnetism I (P331)
Homework 4
Due: Wednesday, October 7, 4:00 PM
1. Two semi-innite conducting planes meet at at a 60 angle. A charge +q is placed in the narrow gap
between the planes
Electricity and Magnetism I (P331)
Homework 3
Due: Wednesday, September 23, 4:00 PM
The rst exam will be Friday, September 25 in class. It will cover primarily Chapter 2 in the Griths
text. Chapter 1
Electricity and Magnetism I (P331)
Homework 2
Due: Wednesday, September 16, 4:00 PM
1. Find the magnitude of the electric eld at a distance z above a circular loop of charge Q and radius a.
1
r
r
Comp
Electricity and Magnetism I (P331)
Homework 1
Due: Wednesday, September 9, 4:00 PM
1. Determine the angle between the diagonal of a cube and an adjacent edge. Hint: use the unit
cube the diagonal is g
Electricity and Magnetism I (P331) M. R. Shepherd October 14, 2008
Differential Equations
The purpose of this note is to provide some supplementary background on differential equations. The problems d
Electricity and Magnetism I (P331) M. R. Shepherd October 31, 2008
The moving capacitor
Today in lecture we worked out both the magnetic and electric pressures on the plate of a capacitor due to the o
Electricity and Magnetism I (P331) M. R. Shepherd October 17, 2008
A capacitor with a non-uniform dielectric
Consider a parallel-plate capacitor filled with non-uniform dielectric. The dielectric is s
Electricity and Magnetism I (P331) M. R. Shepherd September 12, 2008
Application of Gauss' Law to infinite line of charge
The integral form of Gauss' Law, E da = Qenc
0
,
(1)
can be particularly usefu
Electricity and Magnetism I (P331) M. R. Shepherd September 3, 2008
1
1.1
1.1.1
Vector Calculus
Notation
Denoting a vector
Throughout the text vectors are typically noted in boldface upright character