EXPERIMENT 98. To show to the eye the strong attraction between a charged and a neutral body.
Apparatus. The flat box, F B (Nos. 40, 41); the electrophorus (see [Exp. 68]).
213. Directions. (A) Stand F B upon its edge upon a level table, then bring the charged electrophorus cover near it.
(B) Instead of the above, use light hoops made of paper, eggshells, feathers, sawdust, etc.
EXPERIMENT 99. To feel the strong attraction between a charged and a neutral body.
Apparatus. [Fig. 60]. The flat box F B(Nos. 40, 41); the electrophorus ([Exp. 68]).
214. Directions. (A) Hold F B in the left hand, as shown, then slowly bring near it the charged cover, at the same time looking between them so that you can keep them the same distance apart all the way round.