A brass rod is 2 m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100K. (Take the linear expansivity of brass as 1.8 x 10'5K").

okanima

6 years ago

L=2m .
T1 = T
Linear expansivity= 18 x 10'-6
L2 = ? Temp rise= t1-t2 = 100k
linear expansivity = L2-L1 /L1(T2-T1)
L2-2= 2x1.8x10'-5 (100)
L2-2=0.0036m (the linear expansion of the rod)

Hope i cound help

lisa85

3 years ago

thanks very helpful

M02

2 years ago

the minus sign in front of the sub script wasn't included in the question. Could be a typographical error