[Solu/EM-01002] Inkjet Printer

 Inkjet Printer

If an ink drop has a mass of $50\times10^{-9}$g and is given a  charge of  $-200\times 10^{-15}$ C, find vertical displacement in an inkjet printer with 3keV deflection potential, 3mm plate separation and 15 mm deflection plate length. The nozzle ejects the drop with velocity 25 m sec$^{-1}$ and leaving edge of the deflection plate is at a distance 15 mm from the paper.