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A van de Graaff generator has a metal sphere of radius 15 cm. To what potential can it be charged..

A van de Graaff generator has a metal sphere of radius 15 cm. To what potential can it be charged before the electric field at its surface exceeds 3.0 × 106 N/C (which is sufficient to break down dry air and initiate a spark)?

Apr 02 2020 Read more Less More

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