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Procedure for Simulation:
- Click on ‘START’ button.
- Click on Combo box to choose the oil.
- Double click ‘START’ button of stop watch and notice the time taken t1 by a drop, to travel distance l1 between any two points .
- Click ‘Voltage On’ to suspend the same oil drop in air, which is the balancing voltage V.
- Click the ‘X Ray ON’ button and notice the time taken t2 by same drop to travel distance l2 between any two points.
- Charge of drop is calculated using the equation,
![Double click to edit «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»q«/mi»«mo»=«/mo»«mfrac»«mrow»«mn»6«/mn»«mi»§#960;«/mi»«mi»§#951;«/mi»«mi»r«/mi»«mo»(«/mo»«msub»«mi»v«/mi»«mn»1«/mn»«/msub»«mo»+«/mo»«msub»«mi»v«/mi»«mn»2«/mn»«/msub»«mo»)«/mo»«mi»d«/mi»«/mrow»«mi»V«/mi»«/mfrac»«/math»](/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=92854c09de9377352eed1ceb8324a653.png)
- Repeat the experiment for another oil.
Observations
![](/userfiles/1/image/mil%20drop4%281%29.jpg)
![](/userfiles/1/image/mil%20drop4.JPG)
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