In the figure, identify the poles marked P and Q as north or south pole.
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In the magnetic field line we can clearly see that at point P the field lines are moving out of the bar and at Q the field lines are moving in. when in a bar field line moves in the it is North Pole. when in a bar field line moves out the it is South Pole. Point Q is South Pole
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Both the poles must be north poles of 2 diffetent magnets
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