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hemetite
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Homework Statement
A charged water droplet of radius 0.02 mm remains stationary in air. If the electric field of the Earth is 100 N/C downward,what is the charge on the water droplet? By comparison with its neutral state, how many electrons must the water droplet have gained or lost? [ Density of water is 103 kg m-3 ]
Homework Equations
E=F/q , F=ma , p=m/v
The Attempt at a Solution
I got the first answer ...which i have used
q = ma/E which mass of water droplets is derive from the density formula of a sphere and the density formula...
I don't quite understand by the second part?
"By comparison with its neutral state, how many electrons must the water droplet have gained or lost?"
what it is meant by neutral state?