Monday Homework Problem 2.9 An electroscope is initially uncharged. When a charg

Question

Monday Homework Problem 2.9 An electroscope is initially uncharged. When a charged rod is brought near the bolt of a leaf electroscope, but does not touch the bolt, the leaves deflect. No charge is transferred from the rod to the electroscope during this process. What happens to the leaves if the charged object is moved away from the electroscope? Select One of the Following: (a) The leaves continue to deflect. (b) The leaves return to their original position, hanging straight down. (c) The leaves return to their original position, hanging straight down, but then slowly separate over time (d) The leaves return to their original position, hanging straight down, touch, then quickly separate. (e) The leaves' separation is reduced by half

Explanation / Answer

when we take a charged body close to leaves, they acquire charge opposite as on charged body. so the leaves repel each other and show deflection as both have same induced charge.

now when we take it away, the leaves starts discharging so repulsion starts decreasing and ultimately they come to original position

so option b is correct

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