Saved Bookmarks
| 1. |
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 H2.The ratio H1/H2 is given byA) 12 B) 1 C) 23 D) 2 |
|
Answer» Correct Answer: C Explanation : Magnetic field at any point lying on the current carrying straight conductor is zero. Here H1 = Magnetic field at M due to current in PQ. H2 = Magnetic field at M due to QR + magnetic field at M due to QS + magnetic field at M due to PQ =0+H1/2+H1= 3/2 H1 H1/H2 = 2/3 |
|