Q. 3

State the Motor Rule. If the directions of current in the conductor and the magnetic field are the same, in which way will the conductor move?

Answer :

The motor rule is also known as the Fleming's left-hand rule.

According to Fleming's left-hand rule, if the thumb, fore-finger and middle finger of the left hand are stretched to be perpendicular to each other as shown in the illustration at left, and if the fore finger represents the direction of magnetic field, the middle finger represents the direction of current, then the thumb represents the direction of force.



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