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The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant emf of a
  • a)
    Full-pitched coil to that of a chorded coil
  • b)
    Full-pitched coil to the phase emf
  • c)
    Chorded coil to the phase emf
  • d)
    Chorded coil to that of full-pitched coil
Correct answer is option 'D'. Can you explain this answer?
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The pitch factor, in rotating electrical machinery, is defined as the ...
The pitch factor is defined as the ratio of resultant emf of a short pitched coil to resultant emf of a full pitched coil
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The pitch factor, in rotating electrical machinery, is defined as the ...
Pitch Factor in Rotating Electrical Machinery

The pitch factor is an important parameter in rotating electrical machinery which determines the magnitude of the induced emf in the machine. It is defined as the ratio of the emf induced in a chorded coil to the emf induced in a full-pitched coil.

Explanation

A full-pitched coil is a coil that spans the full pitch of the pole pitch of the machine. Its emf is induced by the flux linkage of the entire pole pitch. On the other hand, a chorded coil is a coil that spans only a fraction of the pole pitch. Its emf is induced by the flux linkage of only a part of the pole pitch.

The emf induced in a full-pitched coil is always greater than the emf induced in a chorded coil. This is because the full-pitched coil spans the entire pole pitch and thus experiences the maximum flux linkage. The chorded coil, on the other hand, experiences only a fraction of the total flux linkage and hence its induced emf is smaller.

The pitch factor is defined as the ratio of the emf induced in a chorded coil to the emf induced in a full-pitched coil. It is denoted by the symbol Kp and is given by the equation:

Kp = Echorded / Efull-pitched

where Echorded is the emf induced in the chorded coil and Efull-pitched is the emf induced in the full-pitched coil.

The pitch factor is an important parameter in determining the performance of rotating electrical machinery. It is used to calculate the voltage regulation, efficiency, and power factor of the machine.

Conclusion

In conclusion, the pitch factor is an important parameter in rotating electrical machinery that determines the magnitude of the induced emf in the machine. It is defined as the ratio of the emf induced in a chorded coil to the emf induced in a full-pitched coil. The pitch factor is used to calculate the performance of the machine and is an important parameter in the design and analysis of electrical machines.
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The pitch factor, in rotating electrical machinery, is defined as the ...
The pitch factor is defined as the ratio of resultant emf of a short pitched coil to resultant emf of a full pitched coil
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The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant emf of aa)Full-pitched coil to that of a chorded coilb)Full-pitched coil to the phase emfc)Chorded coil to the phase emfd)Chorded coil to that of full-pitched coilCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2026 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant emf of aa)Full-pitched coil to that of a chorded coilb)Full-pitched coil to the phase emfc)Chorded coil to the phase emfd)Chorded coil to that of full-pitched coilCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pitch factor, in rotating electrical machinery, is defined as the ratio of resultant emf of aa)Full-pitched coil to that of a chorded coilb)Full-pitched coil to the phase emfc)Chorded coil to the phase emfd)Chorded coil to that of full-pitched coilCorrect answer is option 'D'. Can you explain this answer?.
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