Assignment-2

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1133
Sourish Ghosh ·

E(r) = 2πA(r2 - a2) + Q4πr2ε
→ E(r) = A2ε - Aa22r2ε + Q4πr2ε
For E(r) to be independent of r,
- Aa22r2ε + Q4πr2ε = 0

→ (C)

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