PHYS 1B Lecture Notes - Lecture 1: Electric Field, Problem Solving, Static Cling
Document Summary
Problem solving sessions tuesday: 8 pm to 9:50 pm ledden aud. What are the electrical properties in materials: charged (positive, negative), neutral, grounded, conducting, insulating. How do charged particles interact with each other: opposites attract, and likes repel. What is an electric field: a spatial map of the force that a charged test particle would experience if placed in the vicinity of a particular charged object. How to calculate the electric field due to a collection of charges: gauss" law. Electric charges: there are two types of charges, positive charges, protons, negative charges, electrons, opposites attract. Insulators: dry wood, ceramic, rubber, glass, plastic, cloth, conductors, most metals. In an electrically insulating material, all of the electrons are bound tightly to atoms and are not free to move through the material. As the name implies, the earth itself often serves as a good electrical ground: electrically charging materials, there are several ways to add excess charge to a material.
