Saved Bookmarks
| 1. |
A fuse with a circular cross-sectional radius of 0.15 mm blows at 15A. What is the radius of a fuse, made of same material which will blow at 120 A? |
|
Answer» SOLUTION :For FUSE WIRE `Ipropr^(2//3)` so `(r_(2))/(r_(1))`=`((I_(2))/(I_(1)))^(2//3)`=`((120)/(15))^(2//3)`=`(8)^(2//3)`=4`rArr` `r_(2)`=`4r_(1)`=0.60mm |
|