Course:
Applied Physics
Islamia University of Bahawalpur campus RahimYar khan
Course Instructor:
Adeena Fatima
Topics:
ELECTRIC CHARGES AND
COULOMB’S LAW & THE ELECTRIC FIELD
Electriccharge:
Electricchargeisaninnatepropertyofallchargedfundamentalparticlesandcanbeeitherpositiveor
negative.Thechargedparticlesthataremostcommonintheuniversearenegativelychargedelectronsand
positivelychargedprotons.Whenchargedparticlesaremoving,theyareknownaselectriccurrents.An
exampleofanelectriccurrentistheflowofelectronsalonganelectricalwire.
Intrinsicmagneticmoment:
Incontrasttoelectriccharge,thereisnoevidencethatmagneticchargeexists.However,somefundamental
particlesdohaveaninnatemagneticpropertyknownastheintrinsicmagneticdipolemoment.Aparticlewith
amagneticmoment,suchasanelectron,canroughlybethoughtofasaverysmallbarmagnet.A
permanentmagnetisacollectionofparticleswithalignedmagneticmoments.
Electromagneticfield:
Theelectromagneticfieldisaphysicalfieldcreatedbychargedparticlesandparticleswithamagnetic
moment.Thisfieldcanalsooccasionallycreateordestroyparticles.Theelectromagneticfieldcontainstwo
components:anelectricfieldandamagneticfield.
Fundamental of Electromagnetic
Element
Introduction and Properties to Charges
Properties to ChargesIntroduction to Charges