Two isolated metallic spheres of radii $2 \,cm$ and $4 \,cm$ are given equal charge, then the ratio of charge density on the surfaces of the spheres will be
Two isolated metallic spheres of radii $2 \,cm$ and $4 \,cm$ are given equal charge, then the ratio of charge density on the surfaces of the spheres will be
- A
$1: 2$
- B
$4: 1$
- C
$8: 1$
- D
$1: 4$
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