19,916
edits
Changes
no edit summary
==Key Stage 4==
===Meaning===
[[File:Solenoid.png|right|300px|thumb|A [[solenoid]] is made from a coil of [[wire]].]]
A [[solenoid]] is a coil of [[wire]] which produces a [[Magnetic Field|magnetic field]], similar to that of a [[Bar Magnet|bar magnet]], when it has an [[Electrical Current|electrical current]].
:*The [[Electrical Current|current]] in the coil - The greater the [[Electrical Current|current]] the stronger the [[Magnetic Field|magnetic field]].
:*The number of coils - The greater the number of coils the stronger the [[Magnetic Field|magnetic field]].
{| class="wikitable"
|-
|[[File:MagneticFieldLinesSolenoid.png|center|500px]]
|-
| style="height:20px; width:200px; text-align:left;" |This [[diagram]] shows the [[Magnetic Field|magnetic field lines]] of a [[solenoid]].
|}