SUPERCONDUCTIVITY

-



SUPERCONDUCTIVITY


Metal  dh izfrjks/kdrk(resistivity) rki (temperature) c<+kus ls increase gksrh gS foijhr Hkh ,slk gh gksrk gSA dqN /kkrq (metal) vkSj chemical compound Hkh gSa ftldh resistivity 0 gks tkrh gS tc budk temperature 0 degree Kelvin (-273 degree C ) fd;k tkrk gSA bl stage ij metal ;k compound Superconductivity izkIr dj ysrs gSaA superconductivity dh [kkst Heike Kamerlingh Onnes us 1911 eaas fd;k FkkA T6he transition from normal  conductivity to superconductivity takes place almost suddenly it occurs  over a very cnarrow range of temperature about 0.05K this is called transition temperature.
There are two types of superconductor----

Type 1( soft superconductor i.e metals)

Type 2( hard superconductor ,os tks metals with high value of resistivity ds /kkrqdeZ gksrs gSa ) ml rki ij ftl ij superconductivity izkIr gksrh gS og gS 20K (-253 fMxzh lsYfl;l ) tks fd fuvksfc;e] tesZfu;e] vkSj ,Y;qfefu;e ds cus gksrs gSaA

uksV –blds vykok vxj vki yksx dks tks b.tech dk fgUnh esa tkuuk gks rks eq>s 9140163362 ij whatsapp kr dein….

Comments

Post a Comment

Popular posts from this blog

transmission line based questions

-
                                        question 3:  Series capacitor compensation in EHV Transmission line is used to           answer:      improves the stability of the transmission line.                                        HOW?                                            xL Is reactance on T. line                                             here capacitive reactance is taking also                                    ...
Read more

ELECTRICAL BASICS

-
PRIMARY BONDS 1. IONIC BONDS 2.COVALENT BONDS 3.METALLIC BONDS IONIC BONDS-    आयनिक  बांड  में  जालक  पोस्टिव और नेगेटिव  आयन का बना है os etcwr oS|qr LFkSfrd attraction ls ca/ks gksrs gSaA Nacl fØLVy esa nksuksa vkos’kkas ds ikl vf/kd pkTksZl gksrs gSaaA ftlls os vf/kd etcwrh ds lkFk ca/ks gksrs gSaA ftlls vk;fud ca/k bl otg ls cgqr gh etcwr gksrs gSaA etcwrh T;knk gS rks os brittle gksaxsA vxj mUgsa gFkkSM+s ls ihVk tk;s rks leku vkos’k ,d lkFk vk tkrs gSaA ftlls riplusion force gksus ls os fØLVy VwV tkrs gSaaA  Covalent bond- bl ca/k ls atom tkyd ls tqM+s jgrs gSaA These atom interlock by a network of covalent bond produce a cystal which is considered to be a single giant molecule. ftlls ;s ca/k etcwr gksrs gSaA vkSj budh xyukad vf/kd gksrk gSA oS|qr pkydrk ca/k ds etcwr gksus ls T;knk gksrh gSA vkorZ lkj.kh esa Åij ls uhps dh vksj tkus ij   c<+rh tkrh gSA  METALLIC BOND- The crystal consist of atoms pre...
Read more

WHAT IS REACTIVE POWER?

-
While the real or active power is the energy supplied to run a motor, heat a home, or illuminate an electric light bulb, reactive power provides the important function of regulating the voltage thereby to helping to move power effectively through the utility grid and transmission lines to where it is required by the load.                                                                     रिएक्टिव पावर वो पावर है जो वोल्टेज को पूरा करता है जितने की मांग होती है लोड को.   example : when we on  the हैवी लोड component it requires the component to  be stable position .THIS REQUIREMENT IS FULFILL BY REACTIVE POWER                     REACTIVE POWER IN NUMERICAL FORM.                           ...
Read more