Inkjet printerscan be described as either continuous or drop-on-demand. In a continuousinkjet printer, letters are built up by squirting drops of ink at thepaper from a rapidly moving nozzle. You are part of an engineeringgroup working on the design of such a printer. Each ink drop will havea mass of 1.4 * 10^-8 g. The drops will leave the nozzle and traveltowardthe paper at 50 m/s in a horizontal direction, passing througha charging unit that gives each drop a positive charge q by removingsome electrons from it. The drops will then pass between paralleldeflectingplates, 2.0 cm long, where there is a uniform verticalelectricfield with magnitude 8.0 * 10^4 N/C. Your team is working onthe design of the charging unit that places the charge on the drops.(a) If a drop is to be deflected 0.30 mm by the time it reaches the endof the deflection plates, what magnitude of charge must be given tothe drop? How many electrons must be removed from the drop to giveit this charge? (b) If the unit that produces the stream of drops is redesignedso that it produces drops with a speed of 25 m/s, what q valueis needed to achieve the same 0.30 mm deflection?

Inkjet printerscan be described as either continuous or drop-on-demand. In a continuousinkjet printer, letters are built up by squirting drops of ink at thepaper from a rapidly moving nozzle. You are part of an engineeringgroup working on the design of such a printer. Each ink drop will havea mass of 1.4 * 10^-8 g. The drops will leave the nozzle and traveltowardthe paper at 50 m/s in a horizontal direction, passing througha charging unit that gives each drop a positive charge q by removingsome electrons from it. The drops will then pass between paralleldeflectingplates, 2.0 cm long, where there is a uniform verticalelectricfield with magnitude 8.0 * 10^4 N/C. Your team is working onthe design of the charging unit that places the charge on the drops.(a) If a drop is to be deflected 0.30 mm by the time it reaches the endof the deflection plates, what magnitude of charge must be given tothe drop? How many electrons must be removed from the drop to giveit this charge? (b) If the unit that produces the stream of drops is redesignedso that it produces drops with a speed of 25 m/s, what q valueis needed to achieve the same 0.30 mm deflection?