Assertion: electric potential's unit | /r/HasProperty | vector r̂
Facets:
Source sentences:
text: Thus, the electric force on Q 1 would have a direction opposite to the unit vector r̂ and would point from Q 1 to Q 2 .
text: If the charges have opposite signs, the force would be attractive; the attraction would be indicated in equation (1) by the negative coefficient of the unit vector r̂.