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Two charges of magnitude -2Q and +Q are...

Two charges of magnitude `-2Q and +Q ` are located at points (a,0) and (4a, 0) respectively ,What is the electric flux due to these charges through a sphere of radius 3a with its centre at the origin?

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As shown in accordance with Gauss.law the electric flux through the sphere surface.
` phi_E =-( 2Q )/( in_0) `
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