The answers in the box are incorrect Theyre are two phots (: Thank you! LEFT LEO

Question

The answers in the box are incorrect Theyre are two phots (: Thank you! LEFT LEO STUDY LIST Gol x Solved x-ray tube An C o secure httpsellsession Apps D Mylup Himal R: D2L Physics Momail 74836139 PHYs 112.002: Physics ll Lecture Spring 2017 Malkan oil drop problem Millikan oil drop problem In a partoularMaikan ol-drop apparatus, the plates are 3 am apan Thed used as densty oforasgamraandee atomizer at prays he drops Part A of electric feld is needed to hold such a drop statonary against gravtyr the drop contains four eacess VWrm or NC 1.745 Submit M Incorrect: Try Again: 9 attempts remaining Part B What should be the potential difference across the plates to produce this electric field? 567 Mr Answers i other Bookmarks

Explanation / Answer

a) F = Eq = mg

E = m g / q = 4/3 pi (5 * 10-7)3 * 725 * 9.8 / ( 5 * 1.6 * 10-19)

= 4650 V/m

b) E = V/d

V = E d = 4650 (0.0325 ) = 151 V

c) m g = (ne) * (V/x)

n = m g x / (e V) = (725 * 4 pi (5 * 10-7 m)3 / 3 * 9.81 * 0.0325 m) / [(1.6 * 10-19 C * 94.5 V)]

n = 8

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