A. Answer the following in not more than 20 worus.
What would you expect in the following cases?
(a) A plastic ruler is rubbed vigorously with a woollen cloth.
(b) A glass rod rubbed with a piece of silk is brought near a negatively charged paper cylinder
suspended by a string, until the rod touches the cylinder,
charged electroscope.
(e) Someone touches the disc of a negatively charged electroscope.
(c) A positively charged rod is moved slowly towards an uncharged paper cylinder, which is
in contact with the disc of a positively
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