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Two wires A and B with lengths in the ra...

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
`(R_(1))/(R_(2))` is:

A

`5:2`

B

`2:5`

C

`5:3`

D

`3:5`

Text Solution

Verified by Experts

The correct Answer is:
C
`H=V^(2)/R xx t, R =(rho l)/(pi r^(2))`
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