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निम्न सूत्रों को सदिश रूप में लिखिए-
(i) dR = I dL `sintheta`
(ii) `F=qvBsintheta`
(iii) `dB= (mu_(0))/(4pi) (I dl sintheta)/(r^(2))`

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(i) `dvecF=I(dvecI xx vecB)`
(ii) `vecF = q(vecv xx vecB)`
(iii) `dvecB = (mu_(0))/(4pi) I/r^(3) (dvecI xx vecr)`

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