Question

the resistance of a conductor is 2kilo-ohms and length is 50cm and area of cross-section is 200
${cm}^{2}$
find the resistivity of the conductor​

Answer 1

Explanation:

we have given

R =2kilo ohm = 2000ohm

l = 50cm

A = 200 cm ^2

than , we know that ,

R = rho ×l/A

rho= R×A/ l

putting the values we get

rho= 2000×200/50

rho =8000 ohm meter

hence, the resistivity is 8000 ohm metre