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    Question

    According to Maxwell’s right-hand thumb rule, the direction of magnetic field lines around a current-carrying wire is indicated by the:

    A Direction of the thumb Correct Answer Incorrect Answer
    B Direction of fingers encircling the wire Correct Answer Incorrect Answer
    C Direction opposite to the thumb Correct Answer Incorrect Answer
    D Direction of the index finger Correct Answer Incorrect Answer

    Solution

    Maxwell's right-hand thumb rule is used to determine the direction of the magnetic field around a current-carrying conductor. When the thumb points in the direction of the current, the fingers curled around the conductor indicate the direction of the magnetic field lines.

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