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A point charge q is placed on the body diagonal of a cube very close to the lower vertex. Find the flux through the lower face of the cube.

A point charge q is placed on the body diagonal of a cube very close to the lower vertex. Find the flux through the lower face of the cube.

Grade:12

2 Answers

Aman Bansal
592 Points
11 years ago

Dear anwesan,

Use Gauss law and symmetry to show that the flux through one side of the cube is 1/6th of the total flux through a gaussian sphere centred on the origin.

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Aman Bansal

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Anwesan Pal
14 Points
11 years ago

What will be the radius of such a sphere? And moreover the field lines may not pass through 1/6 of the sphere........

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