Download EM Induction Current - negative (((BATTERY))) positive + Electrons

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript 
Ferromagnets
Aligned
Permanent magnets
Non-magnetic material
Magnetic domains
(Groups of electrons
with same spin)
Random
Path helical if path is oblique
Magnetic Force
ON POSITIVE CHARGE
and CURRENT
Magnetic flux
Magnetism
Around wire
Magnetic field (B): points in direction of north
needle
Creates current in
coils
Right- hand rule
AC: electrons don't move... Field flips
Amps = coulombs / s
Commutator and brush
AC
Slip rings and brushes
DC
Generators (rotating
coils in magnets)
EM Induction
Faraday's Law
Of magnetic field
around wire
Flow
Current
Coils
Circuit
Same wire!
- negative (((BATTERY))) positive +
Electrons
Flow
Drift velocity
10^-4 m/s opposite the electric field direction
Caused by RESISTANCE
Chemically
created in
E
DeltaV = deltaEPE / q
Joule / coulomb
Capacitance
EPE=-qEd
Electrical potential
Electric force
Opposites attract
Circuits
Electric field strength = Felectric / q0
Electric charge
Electric field lines
Electric dipole
Frictional heating
Flipping polar molecules
ISM Band radiation
Dielectric heating
(Microwave ovens)
Electric field
C = Q / deltaV
Farad = coulomb / volt
Related documents