The specific resistance `rho` of a thin wire of radius r cm, resistance R ohm and length
Channel: Doubtnut
Date: 02/08/2020

The specific resistance `rho` of a thin wire of radius r cm, resistance R ohm and length L is given by `rho = (pi r^2R)/(L). If L =78+-0.01cm` `r = 0.26 +- 0.02 and R =32 +- 1 Omega,` What is the percentage error in `rho?`