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Step-by-step explanation:
Given :
Radius of solid sphere = R₁
Volume charge density ρ = ρ。/r
Radius of hollow sphere = R₂
Surface charge density = -σ
Total charge in the system is zero.
To Find :
The ratio of R₂/R₁.
Solution :
First of all we have to find individual charge on each sphere.
A] Charge on Hollow Sphere :
B] Charge on Solid Sphere :
V = 4/3 πr³
dV = 4/3 π (3r²) dr
dV = 4πr² dr
ATQ, Q₁ + Q₂ = 0
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