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A conducting shell of radius R carries charge - Q . A point charge + Q is placed at the centre. The electric field E varies with distance r (from the centre of the shell) as

Correct answer

0

Step-by-step solution

Using Gauss theorem: E = 1 4 π ε 0 · Q r 2 for r ≤ R and E   =   0 for r ≥ R ∴ The correct graph is

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