Guide

Amagnetwillalwaysremain
amagnet.Butinthecaseof
anelectromagnet,itonly
becomesamagnetwhen
currentflowsthroughit.Let's
makeit!
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2
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①Batteryholder④Bobbin⑤Plasticcore⑦Enameledwire
⑪Connectingplug⑫Sandpaper
AssemblyAssembly
Whatyouneed
fromthekit:
Whatyouneed
fromhome:
●Battery(1.5VD/R20)×1●Tape
Assembletheelectromagnet
(100-turncoil).
Buffbothsidesoftheenameledwirewith
sandpapertostripoffabout4cmofthe
surface.Ifyoudonotstripoffthesurface
ofthewireneatly,itmaynotallowthe
electriccurrenttoflow.
Windtheenameledwiretightlyaroundthe
bobbinfor100turns.
Inserttheplasticcoreintothebobbintomake
windingtheenameledwireeasier.
Windoneendoftheenameledwirearoundthebobbinstopper.
Windthewire
aroundthe
verticalchase.
2.
Thenwindthe
wirearoundthe
horizontalchase.
3.
Insertthewireinto
theholeofthebobbin
fromtheinside.
1.
Sandpaper
Buffthewireuntil
thecolorchanges.
Windthewiretightly
fromendtoend
Battery
Plasticcore
Plasticcore
4ｃｍ
Tokeepthewirefrom
gettingtangled,puta
batteryinsidetheenameled
wireringtoactasaspool.
Thenstartwindingthewire.
Ifyouwindthewiretightlyfromoneend
totheother,youcanwindapproximately
50turns.Thenwindapproximately50
turnscomingbacktheotherway,to
makeatotalof100turns.
50turns
50turns
Finished
Whatisan
Electromagnet ?
Pulloutthe
wireto4cm.
Bobbin
3
What is an Electromagnet?