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Thread: Battery Capacity
www.piclist.com/techref/power/batterys.htm?key=battery
face picon face BY : email (remove spam text)(Olin Lathrop)



Tomás Ó hÉilidhe wrote:
> If I'm standing 10 metres away with heavy-duty cable, will I not get
> sparks at the point where I touch the crocodile clips together?
>
> Something I'm curious about: What causes the sparks?

Actually they are not sparks, although they look similar.  A spark is
glowing plasma caused by electricity flowing thru the air itself.  When you
touch two pieces of metal together at 12V, the metal at the point of contact
gets vaporized due to the high currents the battery can deliver.  This can
also weld the two pieces of metal together.


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