Electric Fields

(2 pages)
Previewing page 1 of actual document.

Electric Fields

Today we went over how to calculate the strength of an electric field on a test charge. (Cutnell 18.6)

Lecture number:
Lecture Note
The University of Vermont
Phys 012 - Elementary Physics
Documents in this Packet

Unformatted text preview:

Lecture 3 Outline of Last Lecture II. Insulators: contain no free electrons that can move around easily a. Conduct electric charge poorly III. Coulomb’s Law: the magnitude F of te electrostatic force exerted by one point charge q1 on another point charge q2 is directly proportional to the magnitudes |q1| and |q2| of the charges and inversely proportional to the square of the distance r between them (Cutnell 535) a. F = (k |q1||q2|)/r2 b. k = proportionality constant = 8.99 x 109 (N*m2)/C2 F12 = - F21 (Newton’s 3rd Law) Σ F = ma, same mass = same a, just in different Directions (Newton’s 2nd Law) Problem: Where can a 3rd charge (q0) be placed so Fnet on it is zero? Outline of Current Lecture Physics 012 1st Edition

View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams