This is an animation of Figure 1.14. It shows the rotation of the transverse magnetization as a result of applying the resonant RF excitation pulse. Due to Faraday's law of electromagnetic induction if magnetization is moving relative to a conductor, then an electrical voltage is produced. Therefore, as long as a conductor is placed at 90° to this moving magnetization, a voltage is induced within the conductor. The conductor is called a receiver coil.