consider a solid sphere of radius 5cm having volume charge density of 20c/m3 calculate electric flux density at 10cm from the outer surface of the sphere
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A
3.01×10
5
NC
−1
Using Gauss's law the electric field inside the sphere , E.4πr
2
=
ϵ
0
Q
en
=
ϵ
0
ρ.(4/3)πr
3
⇒E=
3ϵ
0
ρr
=
3×8.854×10
−12
2×10
−4
×4×10
−2
=3.01×10
5
NC
−1
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