Explain the principal and working of electri motor

1.	Explain the principal and working of electri motor
Answer» Working\tWhen the current begins to flow, current flows through brush X, then A to B, B to C, C to D and then to brush Y and into the battery.\tNow applying Fleming\'s Left Hand Rule to wire AB, Current is along AB, Magnetic Field is as shown (North-> South), the motion of the wire is downwards.\tNow applying Fleming\'s Left Hand Rule to wire CD, Current is along CD, Magnetic Field is as shown (North-> South), the motion of the wire is upwards.\tThe rectangular coil begins to move in the anti-clockwise direction\tNote that during anti-clockwise motion, the split rings and axle also move, whereas the brushes don\'t move.\tAfter half a rotation, Wire CD and Split ring Q moves to the left. Wire AB and Split ring P moves to right. Brushes X and Y donot move.\tNow applying Fleming\'s Left Hand Rule to wire CD, Current is along DC. (Battery -> Split ring Q -> DC , Magnetic Field is as shown (North-> South), the motion of the wire is downwards.\tNow applying Fleming\'s Left Hand Rule to wire AB, Current is along BA. (Battery -> Split ring Q -> DC --> CB -> BA --> Split ring P) , Magnetic Field is as shown (North-> South), the motion of the wire is upwards.\tSo, again the coil rotates in the anti-clockwise direction.\tThe reversal of current in the coil results in the continous rotation of the coil. The reversal of current is achieved by the commutator rings\t It works on principal of magnetic field

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