Answer:
well, an electric force is caused by an electric charge, which is basically another way of saying that in a certain volume of space, where a field exists, a positive test charge will experience a force towards a negative object creating a field, and away from a positive charge creating a field, hence field lines move away from a positive charge, and towards a negative charge (its just convention). If an object has no negative or positive charge, and it passes through an electric field, it will not experience a force on it.
Now, there are two ways to create a magnetic field: one is when there is a flow of charge (an electron moving through space), or when current flows in a wire, around that wire will be a magnetic field.
The other type of magnetic field is to do with the way the atoms that make up a permanent magnet are arranged.
The actual mechanism of forces acting at a distance was a mystery that Einstein wanted to comprehend, so did Niels Bohr, and Feynman. It is still a mystery. Even Moses must have had unrequited questions. He gave the best resolution to such mysteries in Deuteronomy 29:29.