- #1
arcnets
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I read this in Feynman's book 'Surely you are joking Mr.Feynman' but I didn't understand it.
'If you close an electrical switch, there will be a spark shortly before the contact is made. If you don't want any spark, just put a capacitor across the switch.'
My question: Why does a capacitor prevent the spark? There's still the same voltage on the switch, isn't it?
'If you close an electrical switch, there will be a spark shortly before the contact is made. If you don't want any spark, just put a capacitor across the switch.'
My question: Why does a capacitor prevent the spark? There's still the same voltage on the switch, isn't it?