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Jul 27, 2023 at 9:08 comment added Rory Alsop not a good topic for conversation in comments (better in chat) but a major drawback is the amount of physical deformation required, leading to failure.
Jul 26, 2023 at 18:14 comment added Toasty Is there any insight as to why this method isn't used in place of spark plugs in cars? My first thought when playing with my bbq starter was wondering how they could possibly fit an ignition coil and contact breaker in such a tiny box all on a 1.5 volt AA battery. Thanks for clearing this up :)
Apr 16, 2017 at 9:41 history edited Rory Alsop CC BY-SA 3.0
added 150 characters in body
Apr 5, 2011 at 20:35 vote accept Mark Schultheiss
Mar 22, 2011 at 23:08 comment added Christopher Biggs Great answer. As for the voltage, the dielectric strength of dry air is about 33kV/cm, so if the spark jumps 2mm it has to be at least 6600v.
Mar 22, 2011 at 18:29 history answered Rory Alsop CC BY-SA 2.5