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State Fleming's left hand rule.Write the principle of working of an electric motor.Explain the function of the following parts of an electric(i) Armature (ii) Brushes (ii) Split ring(a)(b)motor. |
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Answer» Ans :- Fleming's Left Hand Rule is used to determine the direction of force on a current carrying conductor placed in magnetic field. It states that stretch the thumb, the forefinger and the middle finger of the left hand so that they are perpendicular to each other. The forefinger points in the magnetic field, the middle finger in the direction of the current and the thumb in the direction of force exerted on conductor. |
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