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Created page with "==Key Stage 3== ===Meaning=== An electromagnet is a magnet made from a coil of wire wrapped around a soft iron core. ===About Electromagnets=== : Elec..."
==Key Stage 3==
===Meaning===
An [[electromagnet]] is a [[magnet]] made from a coil of wire wrapped around a [[Soft Iron|soft iron]] core.
===About Electromagnets===
: [[Electromagnet]]s only work when there is a [[Direct Current|direct current]] passing through the coil of wire.
: An [[electromagnet]] can be turned off and on.
: The strength of an [[electromagnet]] depends on; the number of coils of [[wire]], the [[Electrical Current|current]] through the [[wire]] and how easily the [[Soft Iron|soft iron]] core can be [[Magnetise|magnetised]].
{| class="wikitable"
|-
|[[File:MagneticFieldLinesElectromagnet.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:center;" |The direction of the [[Magnetic Field|magnetic field]] can be changed by changing the direction of the [[Electrical Current|current]].
|}
===Meaning===
An [[electromagnet]] is a [[magnet]] made from a coil of wire wrapped around a [[Soft Iron|soft iron]] core.
===About Electromagnets===
: [[Electromagnet]]s only work when there is a [[Direct Current|direct current]] passing through the coil of wire.
: An [[electromagnet]] can be turned off and on.
: The strength of an [[electromagnet]] depends on; the number of coils of [[wire]], the [[Electrical Current|current]] through the [[wire]] and how easily the [[Soft Iron|soft iron]] core can be [[Magnetise|magnetised]].
{| class="wikitable"
|-
|[[File:MagneticFieldLinesElectromagnet.png|center|400px]]
|-
| style="height:20px; width:200px; text-align:center;" |The direction of the [[Magnetic Field|magnetic field]] can be changed by changing the direction of the [[Electrical Current|current]].
|}