Physics · 2019
NEET 2019 · 20 May · Code G1 · Q136
Two metal spheres, one of radius R and the other of radius 2 R respectively have the same surface charge density σ. They are brought in contact and…
Two metal spheres, one of radius $\displaystyle R$ and the other of radius $\displaystyle 2 R$ respectively have the same surface charge density $\displaystyle \sigma$. They are brought in contact and separated. What will be the new surface charge densities on them?
Official answer
(4)
$\displaystyle \sigma_1=\frac{5}{3} \sigma, \sigma_2=\frac{5}{6} \sigma$
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