1.Two concentric hollow spherical shells radii rrr and RRR (R≫rR\gg rR≫r). Charge QQQ distributed with equal surface densities. Potential at centre isa.Q(R+r)4πε0(R2+r2)\frac{Q(R+r)}{4\pi\varepsilon_0(R^2+r^2)}4πε0(R2+r2)Q(R+r)b.Q(R2+r2)4πε0(R+r)\frac{Q(R^2+r^2)}{4\pi\varepsilon_0(R+r)}4πε0(R+r)Q(R2+r2)c.QR+r\frac{Q}{R+r}R+rQd.zeroLogin to continueOnly logged in users canattempt or see the solution.
