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A charged oil drop is between two horizontal parallel plates. The-(Answered)

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Question

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A charged oil drop is between two horizontal parallel plates. The potential difference between the plates has been adjusted to keep the drop stationary. ?
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Suddenly the oil drop starts moving upwards. What could be the reason for this?

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The source of potential difference may have been switched off.

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The drop may have lost an electron. ?

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The drop may have gained an electron.

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The drop may have coalesced (joined) with an uncharged drop.


 

Paper#9210025 | Written in 27-Jul-2016

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