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If linear charge density of a wire as sh...

If linear charge density of a wire as shown in the figure is `lambda`

Text Solution

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Net field `=int2dEsintheta=int(2kdq)/(R^(2))sintheta=(2ksigma)/(R)underset(0)overset((pi)/(2))intsinthetad theta`
`because dq=sigmaRd theta`
`E_(0)=(2ksigma)/(R)`
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