Question

Two wires A and B with lengths in the ratio of 3:1, diameters in the ratio of 1:2 and resistivities in the ratio of 1:20 are joined in parallel with a source of emf 2V. Ratio of the R₁ and R₂ is:

1) 5 : 2

2) 2 : 5

3) 5 : 3

4) 3: 5

Answer 1

I too got the same answer as Sruthi. I think the book that you may be refering is wrong.