# Electromagnetism

There are two solid spheres of radius $$2R$$ and $$R$$ of non-uniform charge density$$R>1$$. The distance between their centre is $$d$$. There is a point between their centre at which the net electric field is zero $$0.$$ Their charge densities are given as,

For bigger sphere, $$\rho_{(r)} = \dfrac{A}{r}$$,

For smaller sphere, $$\rho_{(r)} = \dfrac{A}{r^2}$$, where $$r$$ is the distance from the centre of sphere.Suppose the required point is at $$x$$ distance from bigger sphere and $$y$$ distance from smaller sphere. Then $$\dfrac{x}{y},$$

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