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Two metallic wires. A and B of equal dim...

Two metallic wires. A and B of equal dimensions but made of different materials, having resistivities p and 2p temperature coefficients of resistivities `2aipha` and `alpha`, are connected in series. The temperature coefficient of resistance of the composite wire equals

A

`rho_(eq)=(3)/(2)rho`

B

`alpha_(eq)=(3)/(2)alpha`

C

`rho_(eq)=3rho`

D

`alpha_(eq)=(4)/(3)alpha`

Text Solution

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The correct Answer is:
A, D
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