LEAF ELECTROSCOPE PHYSICS (a.) A negatively charged balloon is brought close to the “knob” of an...

LEAF ELECTROSCOPE PHYSICS

(a.) A negatively charged balloon is brought close to the “knob” of an initially uncharged leaf electroscope, and the leaves are observed to move apart. What’s the sign of the dominant charge on the leaves?

(b.) At the same time, what is the sign of the charge on the side of the “knob” closest to the balloon?

(c.) At this point, without removing the balloon, you touch the knob (let us say, on the other side). Do electrons flow from you into the electroscope, or from the electroscope into you (or neither)? Why?

(d.) When you touch the knob, the leaves come back together again. You then remove your finger from the knob (the balloon is still there). Does the electroscope at this point have a net charge? If so, of what sign?

(e.) Where is this charge primarily concentrated?

(f.)Explain what happens then when you finally move the balloon away. How does the charge redistribute itself around the electroscope, what do the leaves do, and why?

I only need answers for the two bolded parts. I included the other parts so that there is context. Thank you.

Expert Solution

genius_generous answered 2 years ago

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