salem 3alaykom
i have a question about 'le champ électrostatique"
i hop to get from u an answer , may God bless u
* we have Em=k *q/r² ur
we have rot( Em)=0 (1)
so Em drift a 'potential energy 'v' (2)
and Em=-grad v
my question is ,does this equality Em=-grad v , worth only when (1) and(2) verifie !!?
or we can use it in any condition !!!
i appreciate ur help )
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