A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:
a.
2.5%
b.
0.5%
c.
1.0%
d.
2.0%
a.
2.5%
b.
0.5%
c.
1.0%
d.
2.0%
Question ID - 50048 | SaraNextGen Top Answer A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:
a.
2.5%
b.
0.5%
c.
1.0%
d.
2.0%
A copper wire is stretched to make it 0.5% longer. The percentage change in its electrical resistance if its volume remains unchanged is:
|
a. |
2.5% |
b. |
0.5% |
|
c. |
1.0% |
d. |
2.0% |
1 Answer
127 votes
and volume (v) = Al.
=
=1%127