Q)
A sphere $S_1$ of radius $r_1$ encloses a charge $Q$. If there is another concentric sphere $S_2$ of the radius $r_2 (r_2 > r_1)$ and there be no additional charges between $S_1$ and $S_2$, find the ratio of electric flux through $S_1$ and $S_2$. [CBSE 2001 S ; CBSE Sample Q. Paper 1997]
1 Answer
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