Saved Bookmarks
| 1. |
A toroid wound with 100 turns /m of wire carries a current of 3 A. The core of toroid is made of iron having relative magnetic permeability of mu_(r)= 5000 mu_(0) under given conditions. The magnetic field inside the iron is …........ (Tackle mu_0 = 4pi xx 10^(-7) T mA^(-1) ) |
|
Answer» 0.15 T `= 5000 xx 4pi xx 10^(-7)` `H=i_(f) = nI_(f)` `B= mu_(r) H""H= 100 xx 3 = 300 "Am"^(-1)` `= 5000 xx 4 xx 3.14 xx 10^(-7) xx 300` `= 60 xx 3.14 xx 10^(-2) = 188.4 xx 10^(-2)` `therefore B ~~ 1.88 T` |
|