- #1
flyingpig
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Homework Statement
Take the Earth for instance, if I were to draw field lines, would it be field lines coming out of the mass or into the mass? I initially thought it would be going out because we could look at it as a "positive charge", but then I thought that was silly because gravity is going "down", so which is right...?
I mean if I were to use a "positive test charge" (a mass), the mass would attract to the core of the Earth regardless of the "charge" of the mass.