A water droplet of radius 1 micron in Millikan oil apparatus is first – InterviewSolution

1.	A water droplet of radius 1 micron in Millikan oil apparatus is first held stationary under the influence of an electric field of intensity 5.1×104 NC−1. How many excess electrons does it carry? Take e=1.6×10−19 C, g=9.8 ms−2 and density of water =103 kg m−3
Answer» A water droplet of radius 1 micron in Millikan oil apparatus is first held stationary under the influence of an electric field of intensity $5.1 \times 10^{4} N C^{- 1}$ . How many excess electrons does it carry? Take $e = 1.6 \times 10^{- 19} C$ , $g = 9.8 m s^{- 2}$ and density of water $= 10^{3} k g m^{- 3}$

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