A 0.80-Î¼m-diameter oil droplet is observed between two parallel electrodes spaced 11 mm apart. The droplet...

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Physics

A 0.80-Î¼m-diameter oil droplet is observed between two parallelelectrodes spaced 11 mm apart. The droplet hangs motionless if theupper electrode is 26.6 V more positive than the lower electrode.The density of the oil is 885kg/m3.
Part A
What is the droplet's mass? Express your answer to twosignificant figures and include the appropriate units.
Part B
What is the droplet's charge?
Express your answer to two significant figures and include theappropriate units.
Part C
Does the droplet have a surplus or a deficit of electrons? Howmany?
deficit 6 electrons
surplus 6 electrons
surplus 13 electrons
deficit 4 electrons

Answer & Explanation Solved by verified expert

3.7 Ratings (658 Votes)

Part AWe know that mass of the droplet is given byMass Volumedensitydensity of the oil 885 kgm3Volume of spherical droplet 43pir3r radius of droplet Diameter2 080 m2 040106 mSoMass 43pir3Mass 43pi0401063885 237251016 kgIn two significant figuresMass 241016 See Answer

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