In an electric Motor by applying Fleming left hand rule for the direction of force on a current carrying conductor in a magnetic field we find that the Force acting on arm AB pushes it downward In a electric motor. Why?
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A current carrying conductor when placed at right angle to a magnetic field, experiences a force due to a which we get motion. As per Fleming's left hand rule, the force acting on arm AB pushes it down while the force acting on CD pushes it upwards. Thus, the coil and the axle rotate anticlockwise.
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