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A non-conducting sphere A, attached to an insulated handle is given a charge . It is brought near a…
A non-conducting sphere A, attached to an insulated handle is given a charge $+q$. It is brought near a non-conducting sphere B, having a charge $+Q$, placed on a platform attached to a spring and placed at a vertical distance R from sphere B. The spring compresses by a distance $d_1$. Now, if sphere B is replaced by a similar conducting sphere and sphere A is brought vertically at the same distance from B, without touching it, the spring compresses by a distance $d_2$.
Choose the correct option based on the above situation and diagram:
- (a)$d_2 > d_1$
- (b)$d_2 < d_1$
- (c)$d_2 = d_1$
- (d)insufficient information to compare $d_2$ and $d_1$.
Answer
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From ISC 2025 Practice Physics, question 20.