Investigation A. The pith ball Electroscope The pith ball electroscope consists of a light, conducting pith ball suspended from a support by means of an insulating string. 1 A. Ground the pith ball by touching it. B. Rub a rubber rod with wool of fur and bring it near the pith ball C. Remove the rod
Investigation A. The pith ball Electroscope
The pith ball electroscope consists of a light,
1 A. Ground the pith ball by touching it.
B. Rub a rubber rod with wool of fur and bring it near the pith ball
C. Remove the rod
2 A. Ground the pith ball.
B. Rub a glass rod with silk and bring it near the pith ball.
C. Remove the rod
3 A. Ground the pith ball.
B. Bring a negatively charged rod near the pith ball.
C. Touch the pith ball with the rod
4 A. Charges the pith ball as in 3, by contact.
B. Bring a negatively charged rod near the pith ball.
C. Removes the rod.
5 A. Charge the pith ball as in 3, by contact.
B. Bring a positively charged rod near the pith ball.
C. Remove the rod.
DRAW DIAGRAM FOR EACH CASE AND EACH STEO LIKE A B C
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