They say that electrons move from the higher potential to the lower potential. For example, in this situation. Q1 and Q2 are negative charges and Q3 is positive. But, the equipotential is lower on the Q1 and Q2, so by definition of potential difference, the electron would go from the positive to the negative. But isn't there another concept that says opposites attract? so shouldn't the electron go to the positive charge? I don't quite understand what is happening here.