PHYSICS 489 - Week 22

PHYS 22.1	Frames of Reference
Reading:	Don't Panic Vol I pp 366-375
Homework:	Ch. 19: Pr 1-5; Ex 1-5
Keywords:	Relative velocity, Translating frames, Rotating frames, Inertial frames, Fictitious forces.

At the end of this session the student will be able to:

transform from one coordinate system to another which differs by a translation.
prove that two systems, with a relative acceleration, can not both be inertial.
describe qualitatively the origin of fictitious forces in non-inertial coordinate systems.

PHYS 22.2	Sources of Magnetic Fields
Reading:	Don't Panic Vol II pp 188-194
Homework:	Ch. 10: Pr 1,2; Ex 1,2
Keywords:	Ampere's principle, Biot-Savart law, Permeability of free space, Magnetic dipole, Gauss's law for magnetism

At the end of this session the student will be able to:

state Ampere's Principle (the Biot-Savart Law) and apply it to the following two cases:
determine the B-field near a long, straight wire.
determine the B-field along the axis of c current loop.
sketch the B-field produced by a current carrying loop of wire and define the magnetic dipole moment of the loop.
state Gauss's Law for magnetism.

PHYS 22.3	Ampere's Law
Reading:	Don't Panic Vol II pp 188-202
Homework:	Ch. 10: Pr 3-4; Ex 3-4
Keywords:	Symmetry, Superposition, Solenoid, Toroid

At the end of this session the student will be able to:

explain the terms that appear in Ampere's Law and the limited applicability of this law in determining the B-field at a point in space.
use Ampere's law to determine the B-field in cases like: * inside and outside a long straight wire of radius R carrying current I. * inside and outside a long coaxial cable carrying and returning the current I. * inside a long solenoid with n turns per unit length, radius R, and carrying current I. * inside and outside a toroid, with a core like a doughnut and wrapped with N turns of wire. This looks like a solenoid bent into a circle so its ends can be joined.