which of the following is an effect of the electric Force A : A north pole and South pole repel each other. B: A positive and negative charge attract each other. C: A positive and negative charge repel each other. D: A north pole and south pole attract each other.
Force is a physical quantity. Thus it makes a reasonable sense to say that it has some units. electric force has a unit of newton too. attraction occurs because there is conservation of charges. thus b is answer