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A magnetic compass needle is placed on the plane of paper near point A in which plane should a straight current carrying conductor be placed so that it passes through A and there is no change in the the deflection of the magnetic compass. When is the deflection maximum? ​​​​

Answer» A magnetic compass needle is placed on the plane of paper near point A in which plane should a straight current carrying conductor be placed so that it passes through A and there is no change in the the deflection of the magnetic compass. When is the deflection maximum?
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