Physics, 02.08.2019 12:00 alisonnn101
What third charge should be placed at x=+26cm so that the total electric field at x=+13.0cm is zero?
Answers: 1
and 
. The two charges have a distance from point A of 
and 
, respectively. The field generated by the positive charge heads towards right in point A, while the one generated by the negative charge heads towards left, so we should consider a sign - on this field. Therefore, the total field generated by charge 1 and 2 in A is
is the distance of the charge 3 from point A. So we find
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What third charge should be placed at x=+26cm so that the total electric field at x=+13.0cm is zero?...
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