Home
Class 12
PHYSICS
A wire of a certain material is stretche...

A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively.

A

Both remain the same

B

1.1 times, 1.1 times

C

1.2 times, 1.1 times

D

1.21 times, same

Text Solution

Verified by Experts

The correct Answer is:
D
For stretched wire
`R prop l^(2) rArr R_(1)/R_(2) = (l/(1.1 l))^(2) rArr R_(2) = 1.21 R_(1)`
`rho to` Same, because it is independent from the dimension.
Promotional Banner

Similar Questions

Explore conceptually related problems

A wire of a certain material is stretched slowly by ten perent. Its new resistance resistance become respectively

A wire of resistance 1 Omega is stretched to double its length. What is the new resistance ?

A resistance R is stretched to four times its length. Its new resistance will be

A wire of resistance 1 Omega is stretched to double its length. Then its resistance becomes

A metal resistance R is stretched to double its length. Its new resistance will be ………….. .

If a wire is stretched to double its length, find the new resistance if the original resistance of the wire was R.