Question

length of an aluminium wire is 100 cm . what will be the increase in its length when its temperature is increase in 50°c from 30°c ? coefficient of linear expansion of Aluminium is 26×10-6/°c​

Answer 1

Answer:

0.2cm

Explanation:

Expansion of rod =coefficientofexpansion×L×ΔT

=2.5×10

−5

×1×(100−20)=0.002m=0.2cm

Answer 2

Answer:

l= 100cm,

t= 50°c - 30° c = 20°c

a = 26×10 1° C

l =a% t

=26×10 1°c×100×20

=0.052cm

increased length

=100+0.052

=100.052

hope it help u

itz by alien +insaan