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An infinite line charge produces a field...

An infinite line charge produces a field of `9xx10^(-4)N" "C^(-1)` at a distance of 2 cm. calculate the linear charge density.

Text Solution

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Use, ` E=(lambda)/(2pi epsilon_(0)r)= (2lambda)/(4piepsilon_(0)r)`
or `9 xx 10^(4) (N//C)= ( 9xx 10^(9)xx2lambda)/(0.02)`
`:.lambda= 10^(-7) ` coulomb per metre.
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