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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. ?
Suddenly the oil drop starts moving upwards. What could be the reason for this?
The source of potential difference may have been switched off.
The drop may have lost an electron. ?
The drop may have gained an electron.
The drop may have coalesced (joined) with an uncharged drop.
Paper#9210025 | Written in 27-Jul-2016Price : $22