Ask Questions, Get Answers

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

An aluminium (resistivity $\rho=2.2 \times 10^{-8} \Omega m)$ wire of a diameter $1.4 \;mm$ is used to make a $4 \Omega$ resistor. The length of the wire is

\[\begin {array} {1 1} (a)\;220\;m & \quad (b)\;1000\;m \\ (c)\;280\;m & \quad (d)\;1\;m \end {array}\]

Can you answer this question?

1 Answer

0 votes
(d) 1 m
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