A small charge pit ball of mass 0.90gm is suspended in an electric field so that the gravitational field of the pit ball is exactly balanced.
1. If the electric field strength is 3.0*10^6 and is pointing upwards, what is the charge on the ball.
2. Is the pit ball +ve or -ve?
In Physics
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Asked by Ewatomi on 26th January, 2018
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