When a magnet is passed through a coil, there is a changing magnetic flux through the coil that induces an electromotive force (emf) in the coil. According to Faraday's law of induction, V=-N /t, (1) where V is the induced emf in volts, N is the number of turns of wire in the coil, and /t is the rate of change of the flux () through the coil. The negative sign represents Lenz's law, which states that an induced electromotive force (emf) always gives rise to a current whose magnetic field opposes the original change in magnetic flux. These two laws are explored in this experiment by analyzing a graph of the emf vs. time (see Figure 1 for example), in which the area under the curve is found using Capstone. This area represents the flux () since (via rewriting equation 1) Vt=-N, (2) where the induced voltage plotted as a function time will give that change of flux (V-s, or Wb) for a particular solenoid N. Part I has you exploring these laws with the use of one solenoid (N_1 ) and a magnetic bar going through the coil to induce a voltage, while Part II introduces two