Use a metal wire cage and put the same charges on it by using a PVC tube rubbed with fur. The pith balls hanging on a thread will be supplied with the same charge as the cage itself, so the pith balls will repel from the cage, as they are similar electric charges. Positioning the pith balls on the inside shows no effect on them
(5B20.30) Faraday Cage and Electric Charges
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Use a metal wire cage and put the same charges on it by using a PVC tube rubbed with fur. The pith balls hanging on a thread will be supplied with the same charge as the cage itself, so the pith balls will repel from the cage, as they are similar electric charges. Positioning the pith balls on the inside shows no effect on them
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