Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
How do impurities and temperature affect electrical resistivity of metals?
Ans:
Temperature effect on resistivity:
Any increase in temperature of a conductor increases thermal agitation of metallic ions as they vibrate about their mean positions. This reduces the mean free path and restricts the flow of electrons, hence reducing the conductivity of material and increasing its resistivity.
Ρt = Ρω [1+ α0 (t− 20)]Ρt → resistivity at temperatureΡ20 → resistivity at 200c.α0 → Coefficient of temperatureWhich is positive.
Q. Describe Structure of Solids? Ans. Solids are different from gases and liquids because they have a fixed shape. This definite shape occurs as the individual particles w
what are the 4 unique properties of colloiods
Thin layer chromatography (TLC) Detection of excessive levels of one or more amino acids in blood plasma or in urine is often crucial for diagnosis of a group of genetic (inheri
The mass of a photon with a wavelength equal to 1.54 x 10 -8 cm is: (1) 0.8268 x 10 -34 kg (2) 1.287 x10 -33 kg (3)1.4285x 10 -32 k
CHANGE IN EMF IN A DANIEL CELL
reactions in a mercury button cell
explain types of ir spectrometer
what is oxidation state?
what will you observe if you freeze water at 4 degree celcious
K3[Al(C2O4)3]
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd