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1) a charged plate holds 3nC of charge equally distributed on the plates surface area. The plate is 1cm x 1cm. What is the constant electric field near the surface of this plate?

2) if the plate in the previous problem were laying flat on the table an you observed tiny charged droplets of oil levitating above the plate, what is the mass of the oil droplet if the charge on each droplet is 0.1nC?

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Category:- Physics
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