Surface charge density of a sphere of a radius 10 cm is 8.85×10–8 C/m2. Potential at the centre of the sphere is

VCentre =σrε0=8.85×10−8×10×10−28.85×10−12=10+3V

Surface charge density of a sphere of a radius 10 cm is 8.85×10–8 C/m2. Potential at the centre of the sphere is

VCentre =σrε0=8.85×10−8×10×10−28.85×10−12=10+3V

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Surface charge density of a sphere of a radius 10 cm is 8.85×10^–8 C/m². Potential at the centre of the sphere is

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442.5 V

885 V

1000 V

10^–3 V

answer is A.

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$V_{Centre} = \frac{σr}{ε_{0}} = \frac{(8 .85 \times 10^{- 8}) \times (10 \times 10^{- 2})}{8 .85 \times 10^{- 12}} = 10^{+ 3} V$

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Surface charge density of a sphere of a radius 10 cm is 8.85×10–8 C/m2. Potential at the centre of the sphere is

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Surface charge density of a sphere of a radius 10 cm is 8.85×10^–8 C/m². Potential at the centre of the sphere is