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If the radius of a sphere is 1/(4π)m and the electric flux density is 16π units, the total flux is given by,

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If the radius of a sphere is 1/(4π)m and the electric flux density is 16π units, the total flux is given by,

(a) 2

(b) 3

(c) 4

(d) 5

The question was posed to me in unit test.

The question is from Electric Field Density in portion Electrostatic Fields of Electromagnetic Theory

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Correct choice is (c) 4

Explanation: Total flux leaving the entire surface is, ψ = 4πr^2D from Gauss law. Ψ = 4π(1/16π^2) X 16π = 4.

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