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  4. Electric charges are distributed in a small volume. The flux of the electric field through a spherical surface of radius 10 cm surrounding the total charge is 25 V - m. The flux (in V - m ) over a concentric sphere of radius 20 cm will be -

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Q. Electric charges are distributed in a small volume. The flux of the electric field through a spherical surface of radius $10\, cm$ surrounding the total charge is $25\, V - m$. The flux (in $V - m$ ) over a concentric sphere of radius $20\, cm$ will be -

Electric Charges and Fields

Solution:

From Gauss Law
$\phi=\frac{\Sigma q _{\text {in }}}{\varepsilon_{0}}$ does not depend on volume so
ans. will remain same $25\, V - m$