Class notes
Class notes physics 1155 (PHYS1155)
- Course
- Physics 1155 (PHYS1155)
- Institution
- Northeastern University
Notes detailing Electromagnetic Induction
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Magnetic Fluxwedefinemagneticnoxtnrougnasurfaceiustaswedefinedeiectri.fm
thin fi fEsm
Iii
unitofmagnet
Fluxweber.ws
1Wb 1 m
Example 1: Magnetic Flux CalculationsPARRY
intend.in
tiieifot.heaveit
Ipe aPerspective
view colour
no
p
probie tneairectionimanesanangieofsowitntne
field magnetic
so i
ii iii iii
from
come
over
Magnetic Flux Through a Coil
avg.ua
a
argugnacoilisdefinedasthefiuxtnrougnanysurfacetnatnastne
lusingstore.stneorems.tnatthefiuxaoesnotdependontnespecific
s.ie fi
we
Foraconwitnnt.ms define
i NB.ñdA
Induced Current
Achanging flux
magnetic an current
causes induced
neinducedemr.is
the
corresponding.me
the
causing current
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fi
iiiiiiiiiiiii'iiiiii
iiiiiiiiiiiiiiii.ie
FEE
nescauseenema.naic.ienroaontnecoiitocnan.e
Faraday’s Law on Induction
magnEday'safaw gnlndygtionjop.neinducedemfinaaosedloopeau.is the of timerateofchangeof
n egative the
in
theminussigngivesthedirectionof
note
theinducedemf
towiinswiauEaEErinmagneticfieldleads chance
All
ifeng.im
inducedEMFthe give
the
theaster flux
magnetic the
changes the
g reater
in
, Direction of the Induced Emf
be
inedirectionoftheinducedemfcan found
increasing
warfarin
iiiiii
ii
iiiiiiq.fi
i e
a ieiiiiiiio
Example 2: EMF and the current Induced in a Loop
the
Find emf
induced
the
and in circuit
current the
induced
II
induced
g a 0.24mV
Comm's
current
induced law
48µA
Example 3: Magnitude and Direction of an Induced EMF
B 4.000m
n o s
of EMF
magnitude induced
e
I E
150011.200
o04mtcoszoo.ie o43sv
of currentiscowlooking
direction the
The from to
southnorth
Example 4
a
eme
Att 1wsEs.am why
com
if
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RB'A s6smue
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Ii i
Current
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b since sothe flowscan
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