Compare the resistances, Physics

Assignment Help:

Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances.

Solution)
Given lengths l1=1

                         l2=4

Given radius r1=1

                        r2=2

 Given  specific resistances Ρ(rho)1=3

               Ρ2= 1

we know the R=Ρl/A

              R1/R2=3/1.


Related Discussions:- Compare the resistances

Calculate the photon fluence rate, The photon fluence rate is 10 7 photons...

The photon fluence rate is 10 7 photons mm -2 sec -1 for a beam of γ rays. One fourth of the photons have energies of 100 keV, one half have energies of 80 keV and the remaining

Capacitor, explain spherical capacitor?

explain spherical capacitor?

Calculate the magnetic field due to a circular current loop, As regards cas...

As regards cases involving the application of the Biot-Savart Law to calculate the magnetic field due to an electric current which of the following statements about why it is relat

Financial records, Safe and Sound Ltd is a public company whose business is...

Safe and Sound Ltd is a public company whose business is the manufacture and sale of home security systems.  Only 100,000 shares have been issued: Kate Smith and her sister Sara

Describe features of wave motion , a) It is a sort of disturbance which goe...

a) It is a sort of disturbance which goes by a medium. b) Material phase is necessary for the propagation of mechanical waves. c) When a wave motion goes by a phase, molecule

Heat transfer, indicate the process of heat exchange that does not depend o...

indicate the process of heat exchange that does not depend on temperature difference between human skin and enviroment a: convection b: evaporation c: radiation d: conduction

What is meant by tunnelling phenomenon, What is meant by tunnelling phenome...

What is meant by tunnelling phenomenon? A tunnel diode is a high conductivity two-terminal P-N junction doped heavily about 1,000 times higher than a conventional junction diod

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd