Which rule is used to find the direction of magnetic field in a toroid?

left-hand thumb rule

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right-hand thumb rule

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both A and B

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neither A or B

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Solution

The correct option is B right-hand thumb rule
Right hand thumb rule which states that if the current carrying conductor is held in right hand with the thumb point current direction, Curl fingers represent magnetic field lines.

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Similar questions

State right hand thumb rule which describes the direction of magnetic field around a current carrying wire.

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