- Physics 1404-001 (General Physics II) Lectures
- Topics in the book by Nicholas Giordano 2nd Edition
- Chapter 17: Electric Forces and Fields
- Note: These Lectures (Power Point) are are UNDERGOING CONSTRUCTION!!
is to post a lecture before we discuss a topic in class,
but I can't promise!
- COPYRIGHT: All lectures are
copyrighted by C.W. Myles!
reproduction &/or use of them other than by students in this
course is allowed!!
- Phys 2401 Lectures
- Chapter Summary: A File Provided by the Publisher!
- Part I: Section 17.1: Evidence for Electric Forces: Observational Data.
- Properties of Electric Charges:
- 1. There are 2 Kinds of Charge: Positive & Negative
- 2. Like Charges Repel & Unlike Charges Attract
- 3. Charge is Conserved. Can be transferred, but not created or destroyed.
- 4. Charge is Quantized. Always comes in integer multiples of electron charge e.
- Part II: Section 17.2: Electric Forces & Coulomb's Law
- Electric Forces are Vector Forces!
- 1. Understanding vectors (Physics I) is vital to understand electrostatics!
- 2. Electric Force between charges q1 & q2 distance r apart varies as (1/r2).
- 3. Total force on a charge = VECTOR SUM of forces due to all other charges.
- 4. In calculations, try to use "common sense" to see if answer is correct
- Part III: Sections 17.3 & 17.4: The Electric Field.
- Electric Fields are Vectors!
- Electric Fields near Conductors & Insulators
- 1. Electric Field is defined as the Coulomb Force divided by a test charge.
- 2. Electric Field Lines.
- 3. Total Electric Field at a Point = VECTOR SUM of Fields due to all charges.
- Part IV: Supplement: Fields of Continuous Charge Distributions.
- Overview Only!
- Part V: Section 17.5: Electric Flux & Gauss's Law.
- 1. Electric Flux is Defined as Electric Field Divided by Area
- 2. Gauss's Law: Electric Flux Through Closed Area = (Charge Enclosed)/(Epsilon0)
- 3. Gauss's Law & Coulomb's Law give the same Physics.
- 4. Gauss's Law is Useful & Practical Only for High Symmetry.
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