Hi, I would appreciate it if someone explains the difference between these two phases regarding a coil rotates in a uniform magnetic field. 1. The rate with which the coil intercepts the lines of magnetic field in the dynamo is maximum when the plane of the coil is parallel to the lines of the magnetic flux. 2. The rate of change of magnetic flux linkage with a coil rotating in a uniform magnetic field equals zero when the plane of the coil is parallel to the magnetic field. Why in first case we had maximum value of the ratio and in the second case we get zero?