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

Define adiabatic atmospheres, Define Adiabatic Atmospheres (Boston, Marylan...

Define Adiabatic Atmospheres (Boston, Maryland)? The lower 10-15 km of the troposphere, the atmosphere, is often in a convective stable state with constant entropy, not constan

MECHANICS, A LADDER OF LENGTH 4m weighing 300N is placed against vertical w...

A LADDER OF LENGTH 4m weighing 300N is placed against vertical wall . the coefficient of friction between the wall and the ladder is 0.3.The ladder in addition to its own weight ha

Describe specific charge, Describe specific charge? Desfine Thomson's exper...

Describe specific charge? Desfine Thomson's experiment to calculate e/m of an electron with relevant theory.

What are overtones and harmonics, What are "Overtones" and "Harmonics" ? Ho...

What are "Overtones" and "Harmonics" ? How are they build in an open pipe? Derive the mathematical equations for the frequencies of the harmonics produced in an open pipe.

What is photons how can it have 0 mass???, Light is quantized. Photons are ...

Light is quantized. Photons are light quanta. It has zero REST mass. Therefore, it always travels at maximum speed permitted by relativity

Electric and magnetic phenomena, The line density of charge in a wire is 0....

The line density of charge in a wire is 0.20 Cm-1. If this wire is symmetrically enclosed along its length by a cylindrical surface of radius 1.0 m and length 1.5 m, calculate

Compute the total heat transfer, A confined quantity of air undergoes two t...

A confined quantity of air undergoes two thermodynamic processes departing from an initial equilibrium state where the temperature is 20°C, the absolute pressure is 1bar, and the v

High current measurement , High current measurement : In common with si...

High current measurement : In common with simple analogue multimeters, the meter used a shunt which is directly connected to a separate 10A terminal. The diagram shows the con

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