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|[[File:MagneticFieldLinesWire.png|center|300px]]
| style="padding: 20px; height:20px; width:300px; text-align:left;" |The [[Magnetic Field|magnetic field]] of a [[Electrical Current|current]] carrying [[wire]].
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|[[File:RightHandThumbRule.png|center|300px]]
|-| style="heightpadding:20px; width:300px; text-align:center;" |The [[Magnetic Field|magnetic field]] of a [[Electrical Current|current]] carrying [[wire]].| style="height:20px; width:300px; text-align:centerleft;" |The direction of the [[Magnetic Field|magnetic field]] can be shown by the 'right hand thumb rule' with thumb pointing in the direction of the [[Electrical Current|current]] the fingers will wrap around in the direction of the [[Magnetic Field|magnetic field]].
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