5A10.20 - Electrophorus | ![5a1020electrophorus_4](https://websites.umass.edu/plecprep/files/2016/05/5a1020electrophorus_4.jpg) | Demonstrates charging by induction. |
5A20.20 - Pith Balls | ![5a2020_pith_balls_6](https://websites.umass.edu/plecprep/files/2016/05/5a2020_pith_balls_6.jpg) | Show attraction and repulsion of charges, Polarization and Coulomb's law.
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5A22.10 - Braun Electroscope | ![5a2210_braun_electroscope_3](https://websites.umass.edu/plecprep/files/2016/05/5a2210_braun_electroscope_3.jpg) | Demonstrates charging by induction and attraction and repulsion of charges.
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5A22.30 - Gold Leaf Electroscope | ![5a2230_gold_leaf_electroscope_4](https://websites.umass.edu/plecprep/files/2016/05/5a2230_gold_leaf_electroscope_4.jpg) | Show the presence of charge.
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5A30.10 - Wire vs. String | ![5a3010_wire_versus_string_2](https://websites.umass.edu/plecprep/files/2016/05/5a3010_wire_versus_string_2.jpg) | Shows the difference between a conductor and an insulator.
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5A40.20 - Attracted Soda Can | ![5a4020_attracted_soda_can_1](https://websites.umass.edu/plecprep/files/2016/05/5a4020_attracted_soda_can_1.jpg) | Polarize a metal soda can with a charged rod.
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5A40.23 - Blow Soap Bubbles at Van de Graff | ![5a4024_blow_bubbles_at_van_de_graaff_3](https://websites.umass.edu/plecprep/files/2016/05/5a4024_blow_bubbles_at_van_de_graaff_3.jpg) | Polarization of soap bubbles. |
5A40.30 - Charged Rod Deflects 4x6 | ![5a4030_charged_rod_deflects_4x6_3](https://websites.umass.edu/plecprep/files/2016/05/5a4030_charged_rod_deflects_4x6_3.jpg) | Use polarization to move a 4x6 piece of wood.
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5A40.40 - Deflection of a Stream of Water | ![5a4040deflection_of_a_stream_of_water_2](https://websites.umass.edu/plecprep/files/2015/07/5a4040deflection_of_a_stream_of_water_2-300x225.jpg) | This demonstration shows that a charged rod can deflect a stream of water.
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5A50.10 - Wimshurst Machine | ![5a5010 wimshurst_machine_1](https://websites.umass.edu/plecprep/files/2016/08/5a5010-wimshurst_machine_1.jpg) | This machine is used to create electric charge and store it in capacitors (Leyden jars). When the ... |
5A50.30 - Van de Graff Generator | ![5a5030vdg](https://websites.umass.edu/plecprep/files/2015/07/5a5030vdg-300x225.jpg) | This is a high voltage Van de Graff generator (~400,000V) used for many electricity demos. If you put ... |