Effect of temperature on resistivity of conducting materials, Electrical Engineering

Assignment Help:

Explain the effect of temperature on the resistivity of conducting materials.

The resistance of most metals rises with rise of temperature whereas that of semiconductors and electrolytes reduces along with increase of temperature. Various metals have vanishing resistivity at absolute zero of temperature. This phenomenon is termed as superconductivity. The resistance of a conductor changes along with temperature according to the law Rt = RO (1 + α t). Here Rt and RO are the resistances at "t" and zero degrees centigrade and α the temperature coefficient of resistance.


Related Discussions:- Effect of temperature on resistivity of conducting materials

Explain properties and application of copper, Explain properties and applic...

Explain properties and application of Copper. Properties 1) Cooper is reddish brown in color. 2) Cooper is malleable and ductile and can be forged, cast, rolled, mach

Find the total per-phase inductance, A 300 km, 3-phase, 50Hz transmission l...

A 300 km, 3-phase, 50Hz transmission line has spacing as shown in Figure. Each phase of the line consists of a bundle of three conductors. (a) Find the total per-phase inductanc

Find v and i , Find V and I in the figure given below using ideal diode mod...

Find V and I in the figure given below using ideal diode model

What are the various flags used in 8085, The various flags are: - Sign flag...

The various flags are: - Sign flag,  Axillary flag, Zero flag, Parity flag, Carry flag.

Explain acceptance cone, Explain Acceptance cone? The fibre air - core ...

Explain Acceptance cone? The fibre air - core interface is display below: In this figure Omax is the maximum angle, inside that the rays undergo total internal reflecti

What is a control word, What is a control word? It is a word kept in a ...

What is a control word? It is a word kept in a register (control register) used to control the operation of a program digital device.

Complete the timing diagram for counter, Q. When the J and K inputs of a JK...

Q. When the J and K inputs of a JKFF are tied to logic 1, this device is known as a divide-by-2 counter. Complete the timing diagram shown in Figure for this counter.

Spectrum analyser, The spectrum analyser plots amplitude against frequency,...

The spectrum analyser plots amplitude against frequency, in other words it shows signals in the frequency domain. The spectrum analyser has the same trigger options as the oscillos

Event triggering, what is event triggering related to digital storage oscil...

what is event triggering related to digital storage oscilloscope?

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