. An electric current passes through a straight wire from south to north direction, magnetic needles are placed at position P and Q as shown in the figure. What will be your observation?
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Magnetic compass needle shows deflection in the direction of magnetic field lines. We know that the points A and B has magnetic field lines in opposite direction, thus the needle of the compass will deflect in the opposite direction.
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Magnetic compass needle shows deflection in the direction of magnetic field lines. We know that the points A and B has magnetic field lines in opposite direction, thus the needle of the compass will deflect in the opposite direction.
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