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Represent the electric field intensity a...

Represent the electric field intensity at a point (where a unit positive charge is assumed to be ) due to system of charges.

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In the above figure, replace `q_(0)` by +1C and `vecF` by `vecE`
We get `E(vecr)=(1/(4 pi epsilon_(0)))sum_(i=1)^(n)(q_(i))/(r_(ip)^(2))hatr_(ip)` where P represent position vector of unit positive charge. If
P is at the origin, its coordinate may be taken as (0,0).
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