(Solved): [5 points] A negative point charge moves along a straight-line path directly toward a stationary pos ...

[5 points] A negative point charge moves along a straight-line path directly toward a stationary positive point charge. Which aspects of the electric force vector on the negative point charge (due to the positive point charge) will remain constant as it moves? i. magnitude ii. direction iii. both magnitude and direction iv. neither magnitude nor direction