Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
Home  >>  EAMCET  >>  Physics
0 votes

Copper and carbon wires are connected in series and the combined resister is kept at $0^{\circ} C$. Assuming the combined resistance does not vary with temperature, the ratio of the resistances of carbon and copper wires at $0^{\circ}C$ is ( Temperature coefficients of resistivity of copper and carbon respectively are $4 \times 10^{-3} / ^{\circ}C\: and \: -0.5 \times 10^{-3}/^{\circ}C$)

$\begin {array} {1 1} (1)\;4 & \quad (2)\;8 \\ (3)\;6 & \quad (4)\;2 \end {array}$


Can you answer this question?

1 Answer

0 votes
(2) 8
answered Nov 7, 2013 by pady_1

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App