Question

the resistance of metal wire of length 1m is 26 ohm.if diameter of the wire is 0.3mm what will be the resistivity of the metal




please please please answer this my brainly buddies ill follow you ​

Answer 1

Answer:

Now,

Use formula,

R = ρL/A

Here, R is the resistance, ρ is the resistivity , L is the length of wire and A is the base area of it .

So ,

ρ = RA/L = 26Ω × 7.06 × 10⁻⁸m²/1m

ρ = 1.8356 × 10⁻⁶ Ωm

Hence,

Resistivity is 1.8356 × 10⁻⁶ Ωm at 20°C

Hope it will be helpful ✌️

Answer 2

Answer:

If the diameter of the wire is 0.3mm, resistivity of the metal is =1. 83×10−xSiemen/meter that temperature.

hope ot helps you