Question

A wire of resiatance 2 ohm is stratched to double each length such that its volume remain constant,what is the resistance of streatch wire.​

Answer 1

Answer:

here is your answer dude !!

Explanation:

we know

R=p. l/A........(1)

the volume of the conductor is (v)= A/2 into 2L(as volume is constant)

R'=p. 2L/A/2

=p. 4L/A

=4 L/A

=4R

if the resistance is two ohm then the value of R is 2

R'=4R

#R'=4 into 2

#R'=8

°•°R'=8 ohm