A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip pointing down at 22° with the horizontal. The horizontal component of the earth's magnetic field at the place is known to be 0.35 G. Determine the magnitude of the earth's magnetic field at the place.

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A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has
its north tip pointing down at 220 with the horizontal. The horizontal component of the
earth's magnetic field at the place is known to be 0.35 G. Determine the magnitude of
the earth's magnetic field at the place.
Transcribed Image Text:A magnetic needle free to rotate in a vertical plane parallel to the magnetic meridian has its north tip pointing down at 220 with the horizontal. The horizontal component of the earth's magnetic field at the place is known to be 0.35 G. Determine the magnitude of the earth's magnetic field at the place.
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