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Phase Displacement

Author: E.E. Kimberly

If in Fig. 4-1 a second conductor b, which is separated from conductor a by the angle θ2, be caused to move in the same path as a and with the same velocity and in the same direction as a, there will be induced in conductor b a sinusoidally varying emf Eb. The sinusoid marked eb is a plot of the instantaneous values of Eb. The maximum value of Eb will occur later than that of Ea by a time interval corresponding to the angle θ2 and the velocity of rotation. The angle θ2 is the space angle between conductors a and b and is also called the time phase displacement angle between Ea and Eb. The emf Eb is said to lag Ea by θ2 degrees, or Ea is said to lead Eb by θ2 degrees.

Last Update: 2010-10-05