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Ways to Differentiate Alternator, Generator & Motor

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  Content : 1) Principle Electromagnetic Induction  2) Alternator(AC only) Vs Generator(AC/DC) Vs Motor(AC/DC) 3) Brushes VS Brushless Alternator/Motor 4) Synchronous(AC) & Asynchronous Motor(AC) 5) Cylindrical & Salient Pole Rotor  1) Principle Electromagnetic Induction 1) Faraday's Law ; when there is change in magnetic flux , an electro motive force (e.m.f) is induced OR we can say Relative motion between magnet & coil induced EMF 2) Fleming rule use to determine direction of current / Right Hand Rule (motor), Left Hand Rule(generator). 3) Lenz law ; Induced EMF or Voltage  direction oppose to the cause of it (magnet motion). Lenz Law show magnetic flux/B induced , opposite to △ B that cause it. Using right hand grip onto induced B , we can determine +/-  or current poles. 4) Right Hand rule ;  By also using right hand grip rule to current coil we can determine magnetic field poles North or South Conclusion ;  1) By all of these rules we can't get somethi