In the first drawing the current (I, red arrows) in both wires is in the same direction. The current in the lefthand wire creates a circular magnetic field (B, green lines) which passes through the other wire. From the right hand rule the field lines pass through the wire in an upward direction. From Faraday's law of induction, when the time-varying magnetic field is increasing, it creates a circular current (E, red loops) within the wire around the magnetic field lines in a clockwise direction. These are called eddy currents.