The mass of a copper wire of resistance `R_(1)` and length `l_(1)` is four times the mass of
Channel: Doubtnut
Date: 28/01/2020

The mass of a copper wire of resistance `R_(1)` and length `l_(1)` is four times the mass of another copper wire of length `l_(2)` and resistance `R_(2)`. If `R_(1)=R_(2)`, which one of the following is correct ?