Question

tand conducting wire of 2 metre length and resistance is hundred metre the length of wire is reduced to 1m the resistance wire​

Answer 1

R directly proportional to L^2

R1 = 4m..........eq1

R2 = 1m ...........eq2

eq1/eq2

100/R2=4/1

R2=1OO/4

R2=25 ohm