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You have 2 charged rings which are concentric,
they have a radius of R and 2R respectively.
They are in the x-y plane . (refer to image given).
The smaller ring has a uniform charge
distribution with a density that is linear of -5.00
uC/m. At the point P which is 3R way from the
center of te rings, the electric field is = to zero.
Figure out the liner charge density on the bigger,
outer ring.
P
2R
3R

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