Saved Bookmarks
| 1. |
1 .A compound strip of Brass and Iron ,10cm at 20°c is held horizontally with the iron uppermost when heated from below with a bunsen burner, The Temperature of the brass is 820°c and of iron 770°c . Calculate the difference in length of the iron and brass (linear expansivity of brass is 0.000019K and Iron is 0.000012K . 2. The difference in length between a brass and an iron rod is 20m at 15°c . What must be the length of the brass for the difference to remain at 2cm when both rods are heated at 95°c ( linear expansivity of brass = 0.0000019 per °c , of iron = 0.000017 per °c ). |
|
Answer» mpound strip of Brass and IRON ,10CM at 20°c is held horizontally with the iron uppermost when HEATED from below with a bunsen burner, The Temperature of the brass is 820°c and of iron 770°c .CALCULATE the difference in length of the iron and brass (linear expansivity of brass is 0.000019K and Iron is 0.000012K .2. The difference in length between a brass and an iron rod is 20m at 15°c . What must be the length of the brass for the difference to remain at 2cm when both rods are heated at 95°c ( linear expansivity of brass = 0.0000019 PER °c , of iron = 0.000017 per °c ). |
|