2007-01-25 23:03:09 · 3 answers · asked by indu 1 in Science & Mathematics ➔ Physics
indu, good question!
I found a good citation for you, after some looking. :-)
According to this source, shown below, the supply voltage makes the rotor rotate, and the rotor generates a ‘back emf’ or reverse voltage, which nearly matches the supply voltage when the motor is rotating but not driving anything.
It supplies lots of equations involving resistance and back-emf, so I think it may prove useful.
Hope so, anyway!
2007-02-02 18:01:12 · answer #1 · answered by hp-answers.yahoo 3 · 0⤊ 0⤋
To produce high starting torque for motor to start running
2007-01-26 07:22:22 · answer #2 · answered by evertalall 4 · 0⤊ 0⤋
It would be the prime mover.
It is nothing more or less than an electric motor.
2007-01-31 10:57:15 · answer #3 · answered by jjnsao 5 · 0⤊ 0⤋