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Two wires of the same dimensions but res...

Two wires of the same dimensions but resistivities `rho_(1)` and `rho_(2)` are connected in series. The equivalent resistivity of the combination is

A

`(rho_(1)+rho_(2))/(2)`

B

`rho_(1)+rho_(2)`

C

`(rho_(1)rho_(2))/(rho_(1)+rho_(2))`

D

`sqrt(rho_(1)rho_(2))`

Text Solution

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The correct Answer is:
A
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