Explain resistivity, Electrical Engineering

Assignment Help:

Explain Resistivity.

Resistivity: Resistance R of a wire containing cross-sectional area A and length L maintain the relationship, - R α L and R α 1/A; that is resulting R α L/A or say R = ρ L / A; here ρ is the constant of proportionality and is termed as resistivity of a material and is termed as the resistance among the two opposite faces of a meter cube of that material. This unit of resistivity is ohm-m. Factors influencing resistivity are alloying, temperature and mechanical stressing and ageing.


Related Discussions:- Explain resistivity

Applied mechanics, State whether Lamis theorem is applicable for more than ...

State whether Lamis theorem is applicable for more than three coplanar concurrent forces?

Sampling, Write an m-file "sampling.m", which will take as an input:  a sig...

Write an m-file "sampling.m", which will take as an input:  a signal and a sampling step and will display the sampled signal and the magnitude of its Fourier transform. sampling

Determine the resonant frequency and bandwidth, Q. A gyrator is sometimes u...

Q. A gyrator is sometimes used in integrated circuits to simulate inductances. Consider the circuit of Figure consisting of a gyrator. (a) Show that the impedance as seen to the

Amplifier, Amplifier Usually, an amplifier or simply amp, is any devic...

Amplifier Usually, an amplifier or simply amp, is any device which changes, generally increases, the amplitude of a signal. The connection of the input to the output of an amp

What is dual tone multi frequency, Q What is Dual Tone Multi Frequency? ...

Q What is Dual Tone Multi Frequency? Dual Tone Multi Frequency (DTMF) was first introduced in 1963 with 10 buttons in Western Electric 1500 -type telephones. DTMF was originall

Functions of the physical layer in the internet model, (a) Describe the f...

(a) Describe the four functions of the physical layer in the Internet Model. (b) (i) With the help of a diagram describe the main stages involved in the digitization of a

Basic characteristics and operation of mosfet, Q. Basic Characteristics and...

Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt

Full wave rectifier with filter, what is the theory for full wave rectifier...

what is the theory for full wave rectifier with c filter

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