Question

Variation of field with distance of a charged conducting shell is given below. R is the radius of the sphere 

1. field is maximum at

• centre of the sphere
• at r<R
• at r>R
• at r = R (surface)

2. From the graph find value of field at centre. Give on practical application of this result

3. Draw the potential distance graph in the above case

Answer 1

1. at r = R

2. E = 0

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