Question

The length and area of cross-section of a conductor aee doubled, it's resistance is
a)unchanged
b)halved
c)doubled
d)quadrupled

Answer 1

Heya!!

R= I/A

R'= (2l)/(2A)= R

So, (A)unchanged is the correct option

Hope it helps✌️✌️

Answer 2

heya friend the right option is c.....hope it helps you.