K.C.S.E Physics Q & A - MODEL 2003PP1QN09

10/7/2020

K.C.S.E Physics Q & A - MODEL 2003PP1QN09

Figure 7 shows a highly negatively charged rod being brought slowly near the cap of a positively charged leaf electroscope. It is observed that the leaf initially falls and then rises.

Explain this observation

answer

The negative charges on the rod initially neutralize the positive charges on the leaf and the plate / A the road is moved towards the cap electrons are repelled to the leaf, making it to fall.
As the road is brought nearer, the excess negative charges on the leaf and the plate.

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K.C.S.E Physics Q & A - MODEL 2003PP1QN09

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