Consider the force F on a charge ' q ' due to a uniformly charged spherical shell of radius R…

1. $\mathrm{F}=\frac{1}{4\mathrm{\pi }{\in }_0}\frac{\mathrm{Qq}}{{\mathrm{R}}^2}$ for $\mathrm{r}<\mathrm{R}$
2. $\frac{1}{4\mathrm{\pi }{\in }_0}\frac{\mathrm{qQ}}{{\mathrm{R}}^2}>\mathrm{F}>0$ for $\mathrm{r}<\mathrm{R}$
3. $\mathrm{F}=\frac{1}{4\mathrm{\pi }{\in }_0}\frac{\mathrm{Qq}}{{\mathrm{r}}^2}$ for $\mathrm{r}>\mathrm{R}$
4. $\mathrm{F}=\frac{1}{4\mathrm{\pi }{\in }_0}\frac{\mathrm{Qq}}{{\mathrm{r}}^2}$ for all $\mathrm{r}$

Solution

Asked in: JEE Main 2020 (06 Sep Shift 2)

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