Each charge is equidistant from the origin. In which direction is the net electric field at the point P on the y-axis?

"Upwards and towards the left" is the right answer.

Explanation:

The magnitude of the field will be:

⇒  

And direction -> for negative charges, to positive charges, except charges.  

Thus the net field is upwards as well as to the left.

a is the best answer your welcome

higher potential

explanation:

because it is in a high speed so it must move into a of high potential