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Magnetic Effect of Current — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
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 at 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  The ratio   is given by

(a)   

(b) 1

(c)  

(d) 2 
✓

Answer

(c)  

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