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A rod of length l is placed along x - ax...

A rod of length l is placed along x - axis. One of its ends is at the origin. The rod has a non - uniform charge density `lambda=(a)/(x)`, a being a positive constant. The electric potential at the point P (origin) as shown in the figure is

A

`(a)/(4pi epsilon_(0))ln((b+l)/(b))`

B

`(a)/(4pi epsilon_(0))ln((l)/(b))`

C

`(a)/(4pi epsilon_(0))ln((b)/(l))`

D

zero

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The correct Answer is:
A
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