Class notes
Class notes physics 1155 (PHYS1155)
- Course
- Physics 1155 (PHYS1155)
- Institution
- Northeastern University
Class notes Electric field
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andElectricFieldElectricForces
Electriccharge
Twopositive ortwonegativechargesrepeleach
otherApositivechargeandanegativechargeattracteachother
Electriccharge
unitofchargecoulombc
by aretypicallyaroundamicrocoulumb
p roduced rubbing
charges Ino
onthe
charge electronselect e
e 1.602 10C
theatom
Electricchargein
iii
S mn ethg.toosectsrynlmp1836
me
on
t.IEiremi
win winner S areEns
eEonastormemoved
andconductors
insulators
i.EE
EE
ii
, TheElectricDipole
anelectricdipoleis apairofpointchargeshavingequalbutoppositesign
andseparatedbyadistance
Aneutralatomispolarizedby
andattractedtowardanexternalcharge Theatomsinaninsulatorarepolarizedbyanexternalcharge
Coulomb's
Law
twochargesisproportionaltotheproductofthechargesandinverselyproportionaltothedistancebetween
forcebetween
Electric them
Force
exerted
byaanda
E K i ñ
8.988109 Coulomb's
k C onstant
theabilityofa vaccum s paceto
orfree thetransmissionofelectricfieldlines
permit
offreespaceorvaccumpermittivity
permittivity
4 8.8510 nm
coulombs
lawthenread
4 r in
Law
Coulomb's
Example1
thenetforceonthe bed eightifthe
electricattraction
em
glass
i is
there 9
a one qq.amg Fa K ang axion
o fiass i one The win
Bead
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