A charge q is placed at the center of an imaginary hemispherical surface. Using symmetry arguments and the Gauss’s law, find the electric flux due to this charge through the given surface.
Text Solution
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q/(2ε 0 )
Sol.
Let us complete the sphere by drawing remaining hemisphere dotted as shown in
Then total electric flux through complete sphere.
= 
= φ φ
Hence flux through lower hemisphere ⇒ 
= 
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