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Electrostatics question

2025 · 3 Apr · Shift 1 · Q68
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Electrostatics question

2025 · 3 Apr · Shift 1 · Q68

JEE MainPhysicsElectrostaticsMCQ+4 / −1
The electrostatic potential on the surface of uniformly charged spherical shell of radius R=10 cm\mathrm{R}=10 \mathrm{~cm}R=10 cm is 120 V . The potential at the centre of shell, at a distance r=5 cm\mathrm{r}=5 \mathrm{~cm}r=5 cm from centre, and at a distance r=15\mathrm{r}=15r=15 cm from the centre of the shell respectively, are:
  1. A
    0 V,120 V,40 V0 \mathrm{~V}, 120 \mathrm{~V}, 40 \mathrm{~V}0 V,120 V,40 V
  2. B
    120 V,120 V,80 V120 \mathrm{~V}, 120 \mathrm{~V}, 80 \mathrm{~V}120 V,120 V,80 V
  3. C
    40 V,40 V,80 V40 \mathrm{~V}, 40 \mathrm{~V}, 80 \mathrm{~V}40 V,40 V,80 V
  4. D
    0 V,0 V,80 V0 \mathrm{~V}, 0 \mathrm{~V}, 80 \mathrm{~V}0 V,0 V,80 V
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