Q. No 1: State Fleming’s left-hand rule.
Ans: According to Fleming’s left hand rule if we stretch the thumb, the centre finger and the middle finger of our left hand such that they are mutually perpendicular to each other. If the centre finger gives the direction of current and middle finger points in the direction of magnetic field then the thumb points towards the direction of the force or motion of the conductor.
Did you know that in a magnetic field, a current-carrying conductor would meet force? It is known as electromagnetic force, or emf. This trait is important to all modern electric motors and generators. So we know there's a force operating on the current-carrying conductor, but how do we know which direction it's pulling? If only a simple process could be applied in almost every situation. Fleming left hand rule will suffice.
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