tag:blogger.com,1999:blog-7198200465526591842.post4368309489506484040..comments2018-07-19T00:01:06.355+05:30Comments on School MasterS: : semiconductorSnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7198200465526591842.post-8444698182623324962011-12-25T23:39:04.959+05:302011-12-25T23:39:04.959+05:30NTC means the sign of dR/dT in R-T graph of a typi...NTC means the sign of dR/dT in R-T graph of a typical SC is negative, As w 9 that SC means they have a energy band gap between CB and VB (say Si~1.1 eV), so electron required an energy to cross over this band gap, the required energy we can provide by many ways say LIGHT, HEAT etc.<br /> Now we 9 that in non-degenerate SC electrons having Boltzmann energy distribution (http://www.gs68.de/Mamraj singhhttps://www.blogger.com/profile/08293610632499831985noreply@blogger.comtag:blogger.com,1999:blog-7198200465526591842.post-34871964339388256022009-11-16T22:48:48.170+05:302009-11-16T22:48:48.170+05:30A negative temperature coefficient (NTC) occurs wh...A negative temperature coefficient (NTC) occurs when the thermal conductivity of a material rises with increasing temperature, typically in a defined temperature range. For most materials, the thermal conductivity will decrease with increasing temperature.<br /><br />Negative temperature coefficient (NTC) is a common feature of semiconductors, because the number of charge carriers increases Anonymousnoreply@blogger.com