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What is the charge on the droplet

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Question: If a charged oil droplet of density ρ = 0.92gcm-3 and radius a = 2 μm is just balanced against gravity's pull by an electric field of 1.9 ×106 V/m, what is the charge on the droplet? Give your answer in multiples of the elementary charge e.

Reference no: EM131552681

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