NATS 1745 Lecture Notes - Lecture 6: Static Electricity, Aa Battery, Electric Field
17 Feb 2016
School
Department
Course
Professor
Document Summary
6. 1. 1 an attraction or repulsion that exists between charged particles. 6. 1. 2 charge can be either positive or negative. 6. 1. 3 the force is transmitted via a field. 6. 1. 4 like gravity, electric force weakens with the square of distance from the source, but is far (cid:27) like charges repel, opposite charges attract stronger than gravity. 6. 2. 2 conductor: a material in which electrons flow freely; eg, metal wires, humans (due to water content) Insulator: a material in which electrons can"t flow. 6. 2. 4 static electricity arises from an imbalance of stationary charge; dynamic electricity arises from flowing charge. 6. 2. 5 current: amount of charge flowing through a conductor each second, measured in amps (a); ie, 1a = 1c/sec. 6. 2. 7 circuit: a closed conducting loop connecting a power source to one or more resistors (cid:27) fuse (or circuit breaker): used to break circuit if current exceeds heat limit of wire. 6. 3. 1 electric power: energy delivered by electrons each second, measured in watts (w); 1w =
