चुम्बकत्व

(aangrezi:Magnetism) chumbakatv bhautik vijnan ki vah prakriya hai, jisamean chumbak lohe ke tuk deoan ko apani or akarshit karati hai.

chumbak

1. REDIRECTsaancha:mukhy

lagabhag 600 ee.poo. eshiya mainar ke 'maiganishiya' namak sthan mean kuchh aise patthar paye gaye, jinamean lohe ke chhote-chhote tuk doan ko apani or akarshit karane ke gun maujood the. ye parthar lohe ke ek aauksaid 'maiganetait' (Fe₃O₄) ke the. chooanki ye patthar maiganishiya namak par paye gaye, isalie inhean 'maiganet' kaha jane laga. maiganet ko hindi mean 'chumbak' kahate haian.

chumbak ke gun

chumbak mean mukhyatah nimn gun paye jate haian-

1. akarshan
2. dishatmak gun
3. dhruvoan mean akarshan-pratikarshan

chumbakiy padartho ke prakar

• lohachumbakiy padarth
• pratichumbakiy padarth
• parachumbakiy padarth

chumbakiy kshetr

chumbak sabhi prakar ke chumbakiy padarth ko apani or akarshit karate hai jo usake as pas rahate haian aur chumbak jis sthan se in padartho ko apani or khianchata hai athava akarshit karata hai us sthan se chumbak tak ki doori ko chumbakiy kshetr kaha jata hai. ye chumbakiy kshetr chumbak ke charoan or barabar doori par pae jata hai aur isaki koee sima rekha nahian hoti hai. kahane ka arth yah hai ki chumbak ke chumbakiy kshetr ka sookshmatisookshm vistar hota hai aur chumbak se door vale jagah par bahut kam tivrata paee jati hai. kuchh chumbakoan ka chumbakiy kshetr adhik sashakt chumbakiy kshetr bhi ho sakata hai tatha kuchh ka chumbakiy kshetr halka bhi ho sakata haian. chumbakiy kshetr ko dhruvoan ki shakti par map sakate hai aur yah pata karate hai ki uttari tatha dakshini dhruv mean ek jaisi shakti hai ya nahian. chumbakiy kshetr ki shakti ya tivrata ko gaus athava orested mean mapa ja sakata haian. chumbak ke pas vale sthan par usaki kshetr ki tivrata adhik paee jati hai tatha chumbak se door vale sthan par kam paee jati hai. ek prayogashali chumbak ke charoan or usake kshetr ki tivrata 1000 gaus ho sakata hai. isase mazaboot chumbak ki kshetr ki tivrata 3-4 kilo gaus ho sakati haian. vidyut chumbakoan ke madad se isase bhi adhik chumbakiy kshetr ka utpadan ho sakata hai.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

sanbandhit lekh

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