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Question
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
Solution
According to the right-hand thumb rule, the thumb shows the direction of electric current as shown in the figure given below.
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The curled fingers holding the conductor give the direction of magnetic lines.
Fleming's left-hand rule gives the direction of force experienced by a current-carrying straight conductor placed in an external magnetic field and here thumb represents force on the conductor.
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