According to the figure, a uniform bar of length L carries a current I in the direction from point "a" to point "b". The bar is in a uniform magnetic field directed toward the page. Consider the torque about an axis perpendicular to the bar at point "a" that produces the force that the magnetic field exerts on the bar. Based on the above, answer the following question: How can the direction of a magnetic field be determined solely by qualitative observations of the magnetic force on a straight current-carrying wire? Explain in detail.
According to the figure, a uniform bar of length L carries a current I in the direction from point "a" to point "b". The bar is in a uniform magnetic field directed toward the page. Consider the torque about an axis perpendicular to the bar at point "a" that produces the force that the magnetic field exerts on the bar. Based on the above, answer the following question: How can the direction of a magnetic field be determined solely by qualitative observations of the magnetic force on a straight current-carrying wire? Explain in detail.
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According to the figure, a uniform bar of length L carries a current I in the direction from point "a" to point "b". The bar is in a uniform magnetic field directed toward the page. Consider the torque about an axis perpendicular to the bar at point "a" that produces the force that the magnetic field exerts on the bar.
Based on the above, answer the following question:
How can the direction of a magnetic field be determined solely by qualitative observations of the magnetic force on a straight current-carrying wire? Explain in detail.
Transcribed Image Text:× B ×
× b ×
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