1.

A infinitely long solid non-conducting cylinder has radius 'r' and charge density ρ Cm^(-3). Electric field at distance x from its centre is (x lt r)

Answer»

`(PX)/(3epsilon_(0))`
`(px)/(2epsilon_(0))`
`(px)/(R epsilon_(0))`
`(3PX)/(t_(0))`

Answer :B


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