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A droplet of ink in an industrial ink-jet printer carries a charge of 2.1×10−10 C and...

A droplet of ink in an industrial ink-jet printer carries a charge of 2.1×10−10 C and is deflected onto paper by a force of 3.7×10−4 N .

Find the strength of the electric field to produce this force.

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Answer #1

Relation Between Electric field F and ELectric force F as F = Eq

E = F/q

Elecric field E = 3.7 e -4 /(2.1 e -10)

E = 1.76 e 6 N/C

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