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Question
For Fleming's left-hand rule, write down the three things that are 90° to each other, and next to each one write down the finger or thumb that represents it.
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Solution
In Fleming's left-hand rule, when thumb, forefinger and central finger are kept mutually perpendicular to each other:
(a) Thumb represents force.
(b) Forefinger represents magnetic field.
(c) Central finger represents current.
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