The test covers Chapters 17, 18, 19, and 20. Be sure to read the chapters. Material not covered in lectures are still fair game for the exam.

The Core Material sections in the text are very good (in terms of reviewing the principal equations and concepts covered in the Chapter. In principle, if you have time, you should do every discussion question, every multiple choice question, and every problem at the ends of each chapter. There are many different ways in which to utilize the few equations which are introduced in each chapter. The assigned problems are just a sampling of the possible types of problems. The important thing is to understand the concepts covered and to be able to apply them creatively. There is no substitute for practice.

The following list is not claimed to be exhaustive. I may have overlooked some things.

Material: Chapter 17

• F = kQq/ Qq/r, Coulomb's Law
• E = F/q; Why is this new quantity defined? It is very similar to the Force.
• k = 1/(4) = permittivity, its value depends on the material; What is the dielectric constant (Contrast insulators and conductors; how does dielectric fit into the preceding? What are the properties of a conductor?)
• = (1/) = Gauss's Law. The symbol is the electric field perpendicular to the Gaussian surface.
• The fields and force law given above are for a single point charge. Using Gauss's Law we can show: E = A/(2, long charged wire E = , large charged sheet E = , field of a parallel plate capacitor

Chapter: 18

• F = kQq/d, force. E = kQ/d, field. V = kQ/d, potential. Preceding are for a point charge.
• Ed in a uniform electric field; How does the sign tell you the direction of the field?
• Potential Energy = qV
• Work = V, what is the significance of the sign?
• What is the electromotive force, emf?
• Capacitors; What is a capacitor? C = Q/V. , parallel , series
• What is the capacitance for a charged sphere (like the Earth), for a parallel plate capcitor, ... ?
• = (1/2) QV = (1/2)CV = (1/2) Q/C, energy stored in the process of charging up a capacitor.

Chapter: 19

• I= = Aq
• Batteries; how do they work? How are they to be combined to increase V? to increase power output?, ...
• V=IR
• R = L/A
• = (1+)
• P=IV=IR=V/R

• V = emf - Ir, terminal voltage of a battery
• Resistance, , series , parallel
• Recall, for use in circuit analysis, V = IR across a resistor C = Q/V across a capacitor P = IV
• Kirchhoff's Laws, Loop Rule (Conservation of Energy) Node Rule (Conservation of Charge)
• RC circuits; their uses. Significance of the numerical value of RC.

Random Jargon, Comments, Concepts, ...

• charge, Conservation of Charge, quantization of charge
• electroscope, induced charge, charge transfer, van de Graaff generator (how does it work?)
• electric force, electric field
• potential, potential energy, Conservation of Energy
• vector, scalar
• insulator, conductor, dielectric
• permittivty, dielectric constant
• resistor, capacitor, battery, emf, terminal voltage
• Ohm's Law, Joule heating, power
• Kirchhoff's Laws
• Gauss's Law
• time-independent (steady-state) vs. time-dependent circuits