electrochang
⑧
-
, ish" s
I
induction of a
magnetic field
when currentpasses
through a conductor, a
magnetic field is induced around the wire
↳
i fa compass is broughtclose to a conductor carrying a current needle will flick
-
field ofstraightconductor series ofc oncentric circles at currentflow
magnetic rightangles to
·
-
strength increases:with current
↳
↳
strength decreases:with distance from conductor
↳>
direction -
depends on direction ofconventional current
right hand trait make
field around a conductor
determine direction of the field
to
magnetic
·
·
for straightsingle wire:pointthumb in direction of conventional current -
fingers curl in direction ofinduced magnetic field
↳ into louto f ↳ Clockwise/anti-clockwise
page
flowing outo f magnetic field:anti-clockwise
-
current
page:towardyou
· -
current flowing into page away from your magnetic field:clockwise
· =
night hand solenoid
tale
solenoid a
coil ofw ire
·
·
When currentf lows in solenoid magnetic
=
field induced in solenoid
·
used to determine currentd irection OR
magnetic fielddirection
·
curl tinger in direction of current - thumb points towards north pole
·
magnetic field produced like-
a bar magnet
magnetic field
↳ flows from north to south
affecting factors:increases if i ncreases
·
-
current
->
number of turns on coil increases
->
bar ofi ron is placed in solenoid
⑧
-
, ish" s
I
induction of a
magnetic field
when currentpasses
through a conductor, a
magnetic field is induced around the wire
↳
i fa compass is broughtclose to a conductor carrying a current needle will flick
-
field ofstraightconductor series ofc oncentric circles at currentflow
magnetic rightangles to
·
-
strength increases:with current
↳
↳
strength decreases:with distance from conductor
↳>
direction -
depends on direction ofconventional current
right hand trait make
field around a conductor
determine direction of the field
to
magnetic
·
·
for straightsingle wire:pointthumb in direction of conventional current -
fingers curl in direction ofinduced magnetic field
↳ into louto f ↳ Clockwise/anti-clockwise
page
flowing outo f magnetic field:anti-clockwise
-
current
page:towardyou
· -
current flowing into page away from your magnetic field:clockwise
· =
night hand solenoid
tale
solenoid a
coil ofw ire
·
·
When currentf lows in solenoid magnetic
=
field induced in solenoid
·
used to determine currentd irection OR
magnetic fielddirection
·
curl tinger in direction of current - thumb points towards north pole
·
magnetic field produced like-
a bar magnet
magnetic field
↳ flows from north to south
affecting factors:increases if i ncreases
·
-
current
->
number of turns on coil increases
->
bar ofi ron is placed in solenoid
