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Surface density of charge on a sphere of
radius 'R' in terms of electric intensity 'E' at a
distance 'r' in free space is (o = permittivity of
free space)
2
R
Eo ER
(a)
Mater
& E
(b)
2
(c)
(d)
Eo E
R
r²
Eo Er
R²

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