A charged particle is suspended at the centre of two thin concentric spherical charged shells, made of non conducting material. Figure A shows cross section of the arrangement. Figure B gives the net flux `phi` through a Gaussian sphere centered on the particle, as a function of the radius r of the sphere.

In which range of the values of r is the electric field zero ?

Options

A. 0 to `r_(A)`
B. `r_(A)` to `r_(B)`
C. For `r gt r_(B)`
D. For no range of r, electric field is zero.

Answer

D