Surrounding a
moving charge
is a
magnetic
field
Magnetic Field of a Solenoid
(oil of wire :
called solenoid
flows
Magnetic↳ field is
prod when .
current
through
Strength of field can be increased
by
:
Current Increase
I Coil turns Increase
Determine
polarity by :
I tff
current is clockwise = North
current is anti clockwise
- = South
flux
Magnetic flux and
Magnetic density
flux Field lines that show pattern of
Magnetic :
magnetic field
↳
Symbol :
Phi Clo )
Unit :
Webers ( Wb)
Magnetic flux
Density
↳ More
:
Indicates
magnitude t direction of
magnetic
field
↳
poles
↳ Total
dense near
nun . of field lines through area
sq: Eaa "
'
Formulae :
-
Mag . flux density :
G -
-
BA
Flux Cat
density angle ) to BA cost
-
: =
Flux linkage Prod of of turns flux
coil and
through coil
:
.
no . on
↳ Not