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The electric field at a distance 3R/2 from the centre of a charged conducting spherical shell of radius R is E. The electric field at a distance R/2 from the centre of the sphere is

1. E/2
2. zero
3. E
4. E/2

Correct answer: zero

Solution

For a charged conducting spherical shell, the electric field inside the shell (at any point within radius R) is zero due to electrostatic shielding. Hence, at a distance R/2 from the center, the electric field is zero.

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