Machine Parts

Let us investigate the voltage obtain from coil as it rotates in a magnetic field.              The voltage induced in the coil at position (1) zero. Because the conductor, at this instant is moving parallel to the lines of flux and therefore is not cutting   any lines.             At position 2 the voltage induced in the coil is maximum because the conductors are moving at right angle to the lines of flux. The direction of the current in accordance with Fleming right-handle rule, is shown in the diagram.             The voltage is again zero in position 3. Just as it was at position (1). coil side A is now at the bottom instead of at the top.             At position 4, the voltage is again at a maximum as at position. Applying Fleming’s right-hand rules the current in side-A of the coil at opposite 4, is possible to the direction of current when the coil was in the position-2. Why The wave form of the induced voltage is sinusoidal: Let us investigat