Electricity-electric field help needed?

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Gaga L

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Ink drop from a generator pass through a charging electrode. By means of signal from a computer, the charging electrode controls the charge given to the ink drops. Ink drops are deflected between the deflection plates. The amount of each drop is deflected determines where it strikes the paper. A typical ink drop has a mass of 1.32 x 10^-10 kg. Approximately 100 ink drops are needed to form a single letter on paper. Ink drop "I" has a charge of -1.51 x 10^-13

The deflection plates are 0.100mm apart, and there is a potential difference of 120V across them. The magnitude of the electric field between the plates is ------------ N/C
 
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