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`        We have 3 concentric metallic spheres of radius r1, r2 and r3 having charges q1, q2 and q3 on them. The innermost and outermost spheres are earthed. Find the distribution of charge.`
2 years ago

Vikas TU
8815 Points
```							Innermost is earthed hence its potetial becomes zero.V = 0 = Kq1/r1 = 0that is q1 = 0At middle layerpotential is => Kq2/r2 + 0 = V2At outermost layer,V3 = kq3/r3 + V => kq3/r3 + kq2/r2 = 0hence,q3/r3 = q2/r2Final charge,q1 = 0q2 = q2andq3 = q2*r2/r3
```
2 years ago
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