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1. Electric Charges and Fields
normal
Two charged spheres of radii $R_1$ and $R_2$ having equal surface charge density. The ratio of their potential is
A
$R_1/R_2$
B
$R_2/R_1$
C
$(R_1/R_2)^2$
D
$(R_2/R_1)^2$
Solution
$\mathrm{V}=\frac{\mathrm{K} 4 \pi \mathrm{R}^{2} \mathrm{r}}{\mathrm{R}}$
$\mathrm{V} \propto \mathrm{R}^{\mathrm{R}}$
$\frac{\mathrm{V}_{1}}{\mathrm{V}_{1}}=\frac{\mathrm{R}_{1}}{\mathrm{R}_{2}}$
Standard 12
Physics
