Physics electrical chap 18

# Physics electrical chap 18 - PHY2049PhysicsII...

This preview shows pages 1–7. Sign up to view the full content.

PHY 2049 - Physics II Electric Fields Valmín J. Miranda Polytechnic University Puerto Rico Orlando Campus

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
18.1: The Origin of Electricity Atoms consist of protons, neutrons and  electrons. Mass of electron,  m e  = 9.11 x 10 -31  kg Magnitude of electric charge,  e e  = 1.60 x 10 -19  C can be positive (proton) or negative  (electron).
18.1: The Origin of Electricity Atoms are normally found to be  electrically neutral . Electric charge is said to be  quantized  ( q  =  Ne ).

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
18.2: Charged Objects and  the Electric Force Electric charge is transferred from one  object to another (electricity). Electrons are transferred: Body that gains them has an excess of  negative charge. Body that loses them has an excess of  positive charge. The net charge of the system is zero.
18.2: Charged Objects and  the Electric Force Law of Conservation of Electric  Charge: During any process, the net electric charge  of an isolated system remains constant (is  conserved). Like charges repel and unlike  charges attract each other.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
18.3: Conductors and  Insulators Electric charge conductivity is similar to  thermal conductivity. There are  electrical conductors  and  electrical insulators . In many cases, an electrical conductor is also
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 07/20/2011 for the course ELECTRICAL 3800 taught by Professor Lenardomorales during the Spring '11 term at InterAmerican Recinto Metropolitano.

### Page1 / 21

Physics electrical chap 18 - PHY2049PhysicsII...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online