a) What are the electrons doing in this case? (b) What would the electrons do if the wire were replaced by a dry string that does not conduct electricity?
a) What are the electrons doing in this case? (b) What would the electrons do if the wire were replaced by a dry string that does not conduct electricity?
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a) What are the electrons doing in this case?
(b) What would the electrons do if the wire were replaced by a dry string that does not conduct
electricity? (Are you absolutely sure? How could you find out
whether or not your answer is correct?)
These are the questions attached to the image. Please answer both A & B.
Transcribed Image Text:plastic rod
III. Conductors and Insulators
Suspend the metal cup from the plastic rod
attached to the stand and connect it as shown by
means of a conducting wire to the knob of the
electroscope. Use a proof plane to make a
momentary connection between the knob and the
grounded case (recall the ground wire, not shown)
thus "shorting out" and completely discharging the
electroscope. Important: Place the electroscope as
far away from the cup as the wire permits. Next,
charge up the glass rod and hold it far away from
both the electroscope and the cup. Now bring the
glass rod closer to the cup, but not too close. (Do
not let the rod touch the cup, or you know what
may happen to the gold foil.) Observe the motion
of the movable leaf.
metal cup
conducting wire
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