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Question

When a current carrying conductor is clasped in such a way that the thumb faces the direction of current, the direction of the curl of fingers corresponds ___.

A
to the direction of the magnetic field
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B
to the direction opposite to that of magnetic field
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C
perpendicular to the direction of magnetic field
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D
to the direction opposite to that of electric current
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Solution

The correct option is A to the direction of the magnetic field
The right hand thumb rule states that if we clasp a current carrying conductor in such a way that the thumb points towards the direction of current, the direction of curl of fingers will give the direction of magnetic field.

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