Positive charges their electric fields are pointed out away from the charge. A negative charge their electric field is pointed toward the charge. When a positive and a negative charge are brought close together they will be drawn toward each other, they are magnetic. The electric fields never cross each other when they are magnetic. When you bring a magnetic positive charge and a positive charge together they will be repulsive, the same holds true if you bring a negative charge and a negative charge together. They are repulsive charges. The equation for electric field strength is E=Fe/q.