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कोई अनंत रैखिक आवेश 2 सेमी दुरी पर `9xx10^(4)NC^(-1)` विद्युत क्षेत्र उत्पन्न करता है। रेखित आवेश घनत्व ज्ञात कीजिए ।

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दिया है-
`E=9xx10^(4)NC^(-1),r=2` सेमी = 0.02 मी.
सूत्र - `" "E=(lambda)/(2piepsilon_(0)r)`
`rArr" "lambda=2pi epsilon_(0)rE`
`rArr" "lambda=2pixx(1)/(4pixx9xx10^(9))xx9xx10^(4)xx0.02`
`rArr" "lambda=0.01xx10^(-5)Cm^(-1)=0.1muCm^(-1)`.

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