The increase in number of poles, the dispersion coefficient increases and this gives a low power factor.

The statement you’ve provided relates to the principles of electrical engineering, specifically regarding the design and operation of electric motors and generators. When we talk about the number of poles in an electric motor or generator, we’re referring to the pairs of north and south magnetic poles generated either by permanent magnets or electromagnets. The number of these pole pairs is directly related to the speed and frequency of the electricity that the machine produces or requires.

Here’s a more detailed explanation of the statement:

1. Increase in Number of Poles: In electric motors and generators, increasing the number of poles means that for a given rotational speed, the frequency of the generated (or required) electrical power increases. However, in an AC (Alternating Current) system, this doesn’t actually mean you get more power; instead, it affects the characteristics of the machine, including its speed, torque, and power factor.

2. Dispersion Coefficient Increases: Dispersion coefficient, in this context, is a less commonly used term but generally relates to how spread out the magnetic flux is within the machine. A higher number of poles typically means that the magnetic field lines are more dispersed throughout the stator. This can lead to more complex interactions between the magnetic fields and the electrical currents, affecting the efficiency of the motor or generator.

3. Low Power Factor: Power factor is a measure of how effectively electrical power is converted into useful work output. It ranges from 0 to 1, with a higher power