Question

Is the cap of a gold leaf electroscope is replaced by plastic in place of Copper and A positively charged bodies web across it would the gold live diverge? Why or why not?

Answer 1

Answer:

The same  amount

Explanation:

The static charge is distributed between the two electroscopes. The charged leaves now have half the charge they did, so move closer together. The uncharged electroscope now has the same charge as the now partially discharged scope and the leaves spread approximately the same amount.

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Answer 2

If the cap of a gold leaf electroscope is replaced by plastic and a positively charged body is brought into contact with it the gold foil would show no diversion.

Explanation:

• The cap of the gold foil is made up of good conductor of electric charge and when it is replaced by a plastic which is an insulator then it would not be able to transfer the charge to the end where a gold foil is attached.

• Plastic is an insulator because it has no free electrons like a metal has and it has a big energy gap (>1.4 eV) between its valance band & conduction band.

TOPICS: gold leaf electroscope, electrostatic charge, conduction theory

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