In the region shown in the diagram, the magnitude of the horizontal component of

Question

In the region shown in the diagram, the magnitude of the horizontal component of the Earth's magnetic field is about 2e-5 T. Originally a compass placed at location A points North. Then a bar magnet is placed at the location shown in the diagram, with its center 17 cm from location A. With the magnet present, the compass needle points 75 degrees West of North. (Take North to be toward the top of the page.) Which pole of the magnet is nearer to location A Which arrow best represents the direction of the magnetic field at location B, due to the bar magnet? Which arrow best represents the direction of the magnetic field at location C, due to the bar magnet? Which arrow best represents the direction of the magnetic field at location D, due to the bar magnet? What is the magnetic dipole moment of the bar magnet? mu = A * m^2

Explanation / Answer

A) South because direction of magnetic field at A is pointing west, coming from north pole magnetand entering south pole.

B) b, field due to magnet is eastward and due to earth is northward.

C) h, field due to magnet is westward and due to earth is northward.

D) b, field due to magnet is eastward and due to earth is northward.

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