Thoroughly describe how the method of turning the magnet effectively eliminates

Question

Thoroughly describe how the method of turning the magnet effectively eliminates the magnetic field of the Earth. What was the effect of mapping the bar magnet's field when it was perpendicular to the Earth's field? Compare and contrast the rotation results with the perpendicular results. What percentage error would be caused in the value of m, if the location of the poles were misjudged by 4 mm? What were the values obtained for the north and south pole strengths of the bar magnet, and what is the percentage difference between them? Remember, percent difference is calculated by

Explanation / Answer

(1) When the magnet is turned in such way that the magnetic lines of the eath magent is being cancelled by the opposite nature of the magnetic lines of the given magnet the effect of the earth magnetic magnetic field is cancelled.

(2) When magnetic is freely suspended then the magnet will aling itself in the direction of North and south that is the North of the magnet is in the geographic north and south of the bar magnet is in the geographic south.

but if it not freely suspende then the magnetic lines of bar magnet will cancel the effect of earth magnetic field lines at two points and at that point the net field is zero.

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