Question 1 From which end (North or South) of a bar magnet do
magnetic field lines emerge?
Question 2 Do the field lines really start at the pole face?
Question 3 Do magnetic field lines ever start or end anywhere?
Question 4 A freely pivoting bar magnet (such as a compass needle) is placed in a magnetic field created by other sources. True or False: The figure correctly shows the alignment of the compass in the external magnetic field.
Question 5 The earth’s magnetic field appears as if it were produced by a strong permanent magnet embedded in its core. In the figures below, the earth is shown with the northern hemisphere on top, its core
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