Saved Bookmarks
| 1. |
A solid cylindrical conductor of radius R carries a current along its length.The current density J_(1) however, is not unifrom over the cross section of the conductor but is a function of the radius according to J=br, where b is a constant.the magnetic field B at r_(1) lt R is (mu_(0)b r_(1)^(2))/N.Then find value of N |
|
Answer» `B_(1)=(mu_(0)br_(1)^(2))/3 ,:'i_(1)=underset(0)OVERSET(f_(1))intdi==underset(0)overset(f_(1))int(dr)(2pir dr)=(2pibr_(1)^(3))/3` 
|
|