Saved Bookmarks
| 1. |
the resistance of a wire is 20 ohm find the resistance of the wire when it is streched so that it's length increase by 8% |
|
Answer» ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ Hey mate! 8% of L = 2L/25 New length=(L+2L/25) =27L/25 . • •. n =27/25 R' =(n^2)R R' = (27/25)^2R R' = 729/625R #phoenix.. |
|