Question

a 6m long wire has diameter 0.5mm.Its resistance is 50ohm. Find the resistivity and conductivity​

Answer 1

Step-by-step explanation:

Solution:

Resistivity of a wire is “resistance of wire increased by area of cross component of wire” divided by “length of the wire”.Area of the cross section

π(D/2) ^

π(0.0005/2) ^

So, the resistivity= Resistance * "area of cross section / the length of wire".=

50* 3.14 *(0.00025)^*{2}/{6}

=1.63*10^-8

The resistivity of a copper is 1.63*10^-,8 ohm meter. Resistivity of any metal is its characteristics property. It changes with temperature.

☺☺✌Mark as Brainlist..