Define the resistivity of a metal wire

ρ = (AR) / l

where:

ρ is the resistivity of the metal wire

A is the cross sectional area of the specimen wire

R is the electrical resistance of  a uniform metal wire

l is the length of metal wire through which electricity is passed

Answered by Javier E. Physics tutor

3050 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Describe, using a diagram, the forces acting on the system of an object tethered to a string, rotating around a fixed point in free space. Will the string ever become horizontal?


What is the Schwarzschild radius of a black hole?


Explain what is meant by specific latent heat of fusion


Derive Keplers 3rd law


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences