JEE Main 24 Jan 2026 Shift 1 Paper Solved Paper

Section: Physics

Question : 27 of 75

Marks: +1, -0

The electrostatic potential in a charged spherical region of radius r varies as V=ar3+b, where a and b are constants. The total charge in the sphere of unit radius is α×πa∈0. The value of α is ____ . (permittivity of vacuum is E0 )

[24 jan 2026 Shift 1]

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