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

Determine the thickness of the mica sheet, A parallel plate capacitor is ma...

A parallel plate capacitor is made from 25 plates, each 70mmby 120mm interleaved with mica of relative permittivity 5. If the capacitance of the capacitor is 3000pF verify the

Demonstrating the cause of the phases of the moon, Demonstrating the cause ...

Demonstrating the cause of the phases of the moon Place a lighted candle or electric lamp on a table in a darkened room. Paint an 8 cm rubber ball white. Hold the ball in your

Batteries used in the torch lights, Can the batteries used in the torch lig...

Can the batteries used in the torch lights be recharged after their discharge? Give reason? Ans) No,because the NH4Cl corrods the zn containger gradually.so with out anode redox

Determine the applications of MOSFET, Determine the Applications of MOSFET ...

Determine the Applications of MOSFET MOSFETs can  also  be  used  for  most  applications  where JFET is used. MOSFETs have become very popular for  digital logic circuits bec

Explain study design, 1. Brief definitions of the study design, sampling st...

1. Brief definitions of the study design, sampling strategy, and outcome variable(s) Study design: cross sectional study is carried out at just one point in time or over a sho

Throttling process, In thermodynamics, the Joule-Thomson effect describes a...

In thermodynamics, the Joule-Thomson effect describes a process in which a fluid is forced through a valve or porous plug while kept insulated so that no heat is exchanged with the

Find resistivity of wire, Q. A managing wire of length 2m has a diameter of...

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 πr 2 ) / L                   = ( 70 X 22 X 2 X 10 -4 X 2

Electromagnetic induction, self induction of a coil depends by observing th...

self induction of a coil depends by observing the effect of coil when put in series

Gravitational field inside a spherical shell, Gravitational Field inside a ...

Gravitational Field inside a Spherical Shell In this problem we prove that the gravitational field inside a thin spherical shell of finitemass is zero. By extension, the field

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