State the two factors which determine the power of an electric motor?
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1st factor is AC or DC, since DC is variable speed same as single phase motors.
2nd factor is number of poles of 3 phase stator windings.
3rd factor is frequency since with 3 phase motors 60 Hz means about 20 % more speed than 50 Hz.
4th factor is different frequencies of converters, e.g. of traction motors…
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2nd factor is number of poles of 3 phase stator windings.
3rd factor is frequency since with 3 phase motors 60 Hz means about 20 % more speed than 50 Hz.
4th factor is different frequencies of converters, e.g. of traction motors…
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Answer:
(1) Number of turns
(2) Area of cross section of coil
(3) Strength of magnetic field
(4) Magnitude of current
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