Calculate the resistance of a uniform wire of diameter 0.5mm, length 2m and resistivity 1.7x10^-8Ωm.

R=ρ L/AR= (1.7*10^-8 2)/(0.0005^2π/4)R=0.173Ω

HW
Answered by Heather W. Physics tutor

2417 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Explain, using appropriate laws of motion, why the air exerts a force on the engine in the forward direction.


In some SUVAT questions, they ask for 2 time solutions and I can only find 1. What am I missing?


How does the strong nuclear force between two nucleons varies with separation of the nucleons. Please detail the range over which the force acts.


Given that z = 6 is a root of the cubic equation z^3 − 10z^2 + 37z + p = 0, find the value of p and the other roots.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning