Ametal leaf electroscope has often been used for teaching electrostatics. For example, Fig. 1 is a very early one demonstrating electrostatic induction with a gold leaf electroscope. Alternatively we can charge the electroscope by touching a charged object to it. In both cases, induction or charging, the metal leaves push away from each other for a “Λ” shape.
References
1.
John
Stewart
, Stephen
Skinner
, and Gay
Stewart
, “The leaf electroscope: A take-home project of unexpected depth
,” Phys. Teach.
51
, 520
–521
(Dec.
2013
).2.
Matthew
Craig
, “Metal Leaf Electroscope Simulator
,” http://newsletter.oapt.ca/files/Electroscope-Simulator.html.3.
A. M.
Criado
and A. G.
Carmona
, “Prospective teachers’ difficulties in interpreting elementary phenomena of electrostatic interactions: Indicators of the status of their intuitive ideas
,” Int. J. Sci. Educ.
32
, 769
–805
(2010
).6.
Paul
Gluck
, “The flexible Faraday cage
,” Phys. Teach.
42
, 181
(March
2004
).© 2019 American Association of Physics Teachers.
2019
American Association of Physics Teachers
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