Which statement best describes the application of the Right Hand Thumb Rule to a straight current- carrying conductor?

Question

Which statement best describes the application of the Right Hand Thumb Rule to a straight current- carrying conductor? — Exam MCQ

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A. Thumb points in current direction, fingers curl in magnetic field direction — Point the right-hand thumb in the direction of conventional current; the curled fingers give the direction of the surrounding magnetic field.

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B. Fingers point in current direction, thumb curls in magnetic field direction

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C. Thumb points in magnetic field direction, fingers curl in current direction

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D. Left hand is used for current, right for magnetic field

Which statement best describes the application of the Right Hand Thumb Rule to a straight current- carrying conductor?

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