A linear charge having linear charge density λ penetrates a cube diagonally and then it penetrates a sphere diametrically as shown. What will be the ratio of flux coming out of cube and sphere
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a
12
b
23
c
32
d
11
answer is C.
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Detailed Solution
Flux coming out of the cubeϕ1=λ⋅a3ε0........(i)and from sphereϕ2=λ⋅2aε0.........(ii)∴ ϕ1ϕ2=32