Find resistivity of wire, Physics

Assignment Help:

Q. A managing wire of length 2m has a diameter of 0.4 mm with a resistance of 70 ohm. Find its resistivity.

ρ = ( P X πr2) / L                   = ( 70 X 22 X 2 X 10-4 X 2 X 10-4) / 7 X 2

= 44 X 10-7                            = 4.4 X 10-6 Ωm = 4.4 μ Ωm


Related Discussions:- Find resistivity of wire

Brass, Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called...

Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called brass. It is widely used as a current carrying and structural material in switches and plugs etc. Propertie

Determine the magnitude and direction of a single force, The cantilevered b...

The cantilevered beam below is supported at O.  F1 and F2 in kN are given in P21 and P22 respectively and act on the beam as shown.  Determine the magnitude and direction of a sing

Penetration power of proton, Penetration power of proton is: (1)More than ...

Penetration power of proton is: (1)More than electron     (2)Less than electron   (3)More than neutron (4)None Ans:(2)Less than electron

Torque, what is the unit of torque

what is the unit of torque

Physical significance of curl of a vector function, Describe the physical s...

Describe the physical significance of curl of a vector function?

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

Can multiple illuminators change colors simultaneously, Can multiple illumi...

Can multiple illuminators change colors simultaneously? Yes. Usually the standard disc rotating motors are of the synchronous form, very reliable, and geared to the most suffi

How height and pressure affect the boiling point of water, Q. How does the ...

Q. How does the height and air pressure affect the boiling point of water? Answer:- The only factor that finding the boiling point of water at any altitude is the barometr

Laser, construction and working of ruby laser

construction and working of ruby laser

Hello, what is the methods of dealing with cultural uncertainty is the leas...

what is the methods of dealing with cultural uncertainty is the least successful?

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