A pith-ball electroscope consists of
(a) a heavy material ball
(b)a soft material ball
(c) a box of wood
(d)a stone
Answers
Answered by
1
Answer:
option(b)
Explanation:
The pith-ball electroscope, invented by British schoolmaster and physicist John Canton in 1754, consists of one or two small balls of a lightweight nonconductive substance, originally a spongy plant material called pith, suspended by silk or linen thread from the hook of an insulated stand.
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Answered by
0
Answer:
A soft material ball
Option(b)
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