Physics 2213
Homework #4
Spring 2010
*** Prelim Exam #1
is scheduled for 7:30-9 PM on Thursday evening, March 4.
It will cover
textbook Chapters #21-23, 25, 26;
Homeworks #1-5;
Lab Units #1-3;
and all lecture questions,
examples, theory, discussions, and demonstrations.
Persons with conflicts or special needs please
contact Prof. Elser (ve10@cornell.edu) ASAP to make appropriate arrangements.
GRAPHING and
PROGRAMMABLE CALCULATORS may NOT be used at the exam. ***
Read:
Chapter 25, sections 25.2-5;
Chapter 26, intro., section 26.1, 5
Handouts:
Ideal Electric Circuit Rules, Kirchhoff's Circuit Rules
Basic Ideas:
Electric Current, Voltage, Resistance, Potential Energy, Potential, Work, Power
Properties of conductors carrying electric current
Resistors in Series and Parallel
Conservation of Energy & Electric Charge
Math Skills:
Algebra, Topology ("Connectedness")
Conservative Vector Fields & Potentials
Learning Goals:
(Be sure you understand where and how each goal applies to our homework, discussion,
lecture, and lab activities.)
*
Relate magnitudes and directions or polarities of electric currents, voltages, and electric fields
in electric circuits.
*
Predict how properties of electric circuits will change when components or connections are
changed.
*
Determine the power dissipated by electrical resistances (including light bulbs) in circuits.