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NEET UG PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Application +4 | -1
If volume change density inside a solid sphere of radius R{R} varies with distance rr from centre of sphere as ρ=ρ0rR;ρ0=\rho=\rho_0 \frac{r}{R} ; \rho_0= constant then find electric field intensity at distance r(<R){r}(<{R}) from centre is
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Correct option: A
ρ0r24∈0R\frac{\rho_0 r^2}{4 \in_0 R}
Option A (ρ0r24∈0R\frac{\rho_0 r^2}{4 \in_0 R}) is correct because it is derived from Gauss's law, considering the varying charge density within the sphere.

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