# JEE 2000 Screening Q009 Magnetic field ratios in two different cases

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# Original Question by Dharav talk

Here's the question...
 An infinitely long conductor PQR is bent to form a right angle as shown. A current I flows through PQR. The magnetic field due to this current at the point M is H1. Now, another infinitely long straight conductor QS is connected to Q so that the 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... 300px (A) 1/2 (B) 1 (C) 2/3 (D) 2 Posted by Dharav talk 04:23, 18 August 2009 (UTC)

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