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  • 12-04-2024
  • Physics
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The electrostatic potential inside a charged spherical ball is given by ϕ = ar2 + b where r is the distance from the centre; a, b are constants. Then the charge density inside the ball is
(a) –24πaε0r
(b) –6aε0r
(c) –24πaε0
(d) –6aε0

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