Download Review Sheet 3

Review Sheet – Test 3 – Physics 222 – Fall 2016 – RHC
1. The test will cover chapters 27 through 31 inclusive, labs 4 and 5 (not 6), all the examples
and STT’s we went through in class for chapters 28 through 31 inclusive, and all the offline
(book) homework assigned for chapters 28 through 31 inclusive. If an equation is relatively
obscure, I will provide it.
2. Gauss’ Law of the Electric Field
What is Gauss’ Law of the Electric Field? Can you do problems assigned in this chapter?
3. Electric Potential (28)
The definition of electric potential difference.
The potential difference between two plates of a parallel plate capacitor, expressed in two
ways.
Absolute potential for a point charge. 1-D problems involving combinations of absolute
potential and potential difference. Absolute potential for a charged sphere, viewed from the
outside.
Using potential difference in conservative systems to calculate change in kinetic energy of a
charged particle.
4. Potential and the Electric Field (29)
The relationship between potential difference and electric field. The relationship between
electric flux and equipotential lines and surfaces. The direction of the electric field and the
direction of decreasing potential difference.
Terminal potential difference vs. voltage under load.
Kirchhoff's voltage loop law, and its relationship to the conservative nature of the electric force.
Kirchhoff's current conservation law.
What is a capacitor? What are the two things capacitors store? Champagne Velvet. Unit of
capacitance. How is capacitance calculated for a parallel plate capacitor?
Capacitors in series and parallel (two rules). Using the circle method. Finding Qtot, and why
that's important to do. Potential energy stored in a capacitor, and in an overall circuit.
5. Current, Resistance, and Ohm's Law (30)
What is the definition of current?
In regular circuits, which way does current flow? What convention do we follow? Why?
Resistivity and its relationship to resistance. How to calculate resistance in a carbon axial
resistor.
Ohm's Law. Units of resistance and current. Current is a result of voltage applied to a complete
circuit. Open circuit, short circuit, regular circuit. Current kills. Loops vs circuits.
2. Fundamentals of Circuits (31)
Basic circuit symbols. How ground works. Using Ohm's Law. Power dissipation in resistors.
KW-Hr calculations.
Resistors in series and parallel (two rules). Finding Itot, and why that's important to do. Using
the circle method. Resistors and capacitors in the same circuit. Current splitting through
parallel resistors.
How to use a voltmeter, ammeter and ohmmeter.
Nothing on RC Series Circuit. Nothing on Kirchhoff circuit problems.