Question

How to determine the direction of a pos and neg charge?

Answer 1

That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.

Answer 2

HERE IS YOUR ANSWER. . . .
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electric field is always directed from positive to negative potential . if your test charge is move away from positive potential then force is in the direction of electric field and if test charge is moving towards positive potential then force in direction opposite to electric field.
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