Test:267 QNo:5

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An infinitely long conductor PQR is bent to form a right angle as shown in figure. A current I flows through PQR. The magnetic field due to current at the point M is H₁. Now, another infinitely long straight conductor QS is connected at Q so that current is I/2 in QR as well as in QS, the current in PQ remaining unchanged. The magnetic field at M is now H₂. The ratio H₁/H₂ is given by

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rajnishan sharma ·2010-12-28 09:26:35

but due to QS the direction of current will be into the plane of the paper and due to PQ it is out of the plane so `the net will be subtracted not added then the answer will be 2

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Test:267 QNo:5

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