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4real4sure
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Homework Statement
A spherical droplet of radius R and effective mass density ρ. carries a total charge q in a gravity field g. What electric field E iz, will suspend the charged droplet? Millikan found by this method that all droplets carried integer multiples ofnegative charge e= -1.6 x 10-coul.
Homework Equations
F=ma
The Attempt at a Solution
I would like to confirm if my attempt is okay or not. Please can you give explanation based on whatever method it is required to be solved in.
q E = ρ g (4/3) ∏ R3
E = ((ρ g)/q) (4/3) ∏ R3