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JEE Main 2022 Physics question

PhysicsElectric Charges and FieldsJEE Main 2022

The volume charge density of a sphere of radius 6 m is 2 . The number of lines of force per unit surface area coming out of the surface of the sphere is . [Given : Permittivity of vacuum ).

Answer: 45

Solution

The number of lines of force per unit area equals the electric field at the surface: R^{2})R^{3})R^{2})$ = ρ

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Question ID VK-024769