{"id":315,"date":"2012-06-22T08:53:16","date_gmt":"2012-06-22T08:53:16","guid":{"rendered":"http:\/\/www.karadenizli.biz\/yaren\/?p=315"},"modified":"2012-06-22T08:53:16","modified_gmt":"2012-06-22T08:53:16","slug":"en-iyi-iletken-altin-degilmis","status":"publish","type":"post","link":"https:\/\/www.karadenizli.biz\/yaren\/en-iyi-iletken-altin-degilmis\/","title":{"rendered":"En \u0130yi \u0130letken Alt\u0131n De\u011filmi\u015f!"},"content":{"rendered":"<p>Tubitak merak ettikleriniz k\u00f6\u015fesine gelen bir soru ve cevab\u0131;<\/p>\n<p>En iyi iletken hangisidir? Bir\u00e7ok yerlerde en iyi iletkenin alt\u0131n oldu\u011funu duyuyoruz. Fakat baz\u0131 arkada\u015flar\u0131m en iyi iletkenin g\u00fcm\u00fc\u015f oldu\u011funu \u0131srarla iddia ediyorlar. Benim internetten yapt\u0131\u011f\u0131m ara\u015ft\u0131rmalarda ise; Bir maddenin iletkenli\u011fini belirleyen en \u00f6nemli fakt\u00f6r, atomlar\u0131n\u0131n son y\u00f6r\u00fcngesindeki elektron say\u0131s\u0131d\u0131r. Bu son y\u00f6r\u00fcngeye \u2018valans y\u00f6r\u00fcnge,\u2019 \u00fczerinde bulunan elektronlara da \u2018valans elektronu\u2019 denir. Valans elektronlar\u0131 atom \u00e7ekirde\u011fine zay\u0131f olarak ba\u011fl\u0131d\u0131r. Valans y\u00f6r\u00fcngesindeki elektron say\u0131s\u0131 4&#8217;den b\u00fcy\u00fck olan maddeler yal\u0131tkan, 4&#8217;den k\u00fc\u00e7\u00fck olan maddeler de iletkendir. \u00d6rne\u011fin bak\u0131r atomunun son y\u00f6r\u00fcngesinde sadece bir elektron bulunmaktad\u0131r. Bu da bak\u0131r\u0131n iletken oldu\u011funu belirler. Bak\u0131r\u0131n iki ucuna bir elektrik gerilimi uyguland\u0131\u011f\u0131nda, bak\u0131rdaki valans elektronlar\u0131, g\u00fc\u00e7 kayna\u011f\u0131n\u0131n pozitif kutbuna do\u011fru hareket eder. Bak\u0131r elektrik iletiminde yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Sebebi ise maliyetinin d\u00fc\u015f\u00fck olmas\u0131 ve iyi bir iletken olmas\u0131d\u0131r. En iyi iletken alt\u0131n, daha sonra g\u00fcm\u00fc\u015ft\u00fcr. Fakat bunlar\u0131n maliyetinin y\u00fcksek olmas\u0131 nedeniyle elektrik iletiminde kullan\u0131lmamaktad\u0131r gibi bir sonuca var\u0131yorum. Bunun do\u011frusunu en mant\u0131kl\u0131, gerekirse bilimsel dilde anlat\u0131rsan\u0131z \u00e7ok sevinirim. S\u00fcratle mailinizi bekliyorum. Te\u015fekk\u00fcrler.<\/p>\n<p>Soruyu soran Baran G\u00fcle\u015fen<!--more--><\/p>\n<p>En iyi iletken g\u00fcm\u00fc\u015ft\u00fcr. Uygulanan elektrik alan\u0131n\u0131n (E) birimi ba\u015f\u0131na olu\u015fan hacimsel ak\u0131m yo\u011funlu\u011fu (J) olarak tan\u0131mlanan \u00f6zdirencinin, yani \u03c1=E\/J\u2019nin \u00f6l\u00e7\u00fcm de\u011feri, \u2018mikro ohm santimetre\u2019 birimi cinsinden 1.6 \u03bc\u03a9cm\u2019dir. \u0130letkenlik s\u0131ralamas\u0131nda; g\u00fcm\u00fc\u015ften sonra bak\u0131r, sonra alt\u0131n gelir. Bak\u0131r ve alt\u0131n\u0131n \u00f6zdiren\u00e7leri ise, s\u0131ras\u0131yla; 1.7 ve 2.2 \u03bc\u03a9cm\u2019dir.<\/p>\n<p>Soruyu cevaplayan Vural Alt\u0131n<\/p>\n<p>Kaynak: http:\/\/biltek.tubitak.gov.tr\/merak_ettikleriniz\/\/index.php?kategori_id=6&amp;soru_id=3223<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tubitak merak ettikleriniz k\u00f6\u015fesine gelen bir soru ve cevab\u0131; En iyi iletken hangisidir? Bir\u00e7ok yerlerde en iyi iletkenin alt\u0131n oldu\u011funu duyuyoruz. Fakat baz\u0131 arkada\u015flar\u0131m en iyi iletkenin g\u00fcm\u00fc\u015f oldu\u011funu \u0131srarla iddia ediyorlar. Benim internetten yapt\u0131\u011f\u0131m ara\u015ft\u0131rmalarda ise; Bir maddenin iletkenli\u011fini belirleyen en \u00f6nemli fakt\u00f6r, atomlar\u0131n\u0131n son y\u00f6r\u00fcngesindeki elektron say\u0131s\u0131d\u0131r. Bu son y\u00f6r\u00fcngeye \u2018valans y\u00f6r\u00fcnge,\u2019 \u00fczerinde [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[5],"tags":[29,110,131],"class_list":["post-315","post","type-post","status-publish","format-standard","hentry","category-vaybee","tag-altin","tag-en-iyi-iletken","tag-gumus"],"psp_head":"<title>En \u0130yi \u0130letken Alt\u0131n De\u011filmi\u015f! \u2013 Orijinal Olan Her Bilgi...<\/title>\r\n<meta name=\"description\" content=\"En iyi iletken g\u00fcm\u00fc\u015ft\u00fcr. \u0130letkenlik s\u0131ralamas\u0131nda; g\u00fcm\u00fc\u015ften sonra bak\u0131r, sonra alt\u0131n gelir.\" \/>\r\n<meta name=\"robots\" content=\"index,follow\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.karadenizli.biz\/yaren\/en-iyi-iletken-altin-degilmis\/\" \/>\r\n","jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2X1Qf-55","jetpack-related-posts":[{"id":298,"url":"https:\/\/www.karadenizli.biz\/yaren\/donunca-hacmi-artan-tek-bilesik-madde\/","url_meta":{"origin":315,"position":0},"title":"Donunca Hacmi Artan Tek Bile\u015fik Madde","author":"karadenizli","date":"5 Aral\u0131k 2013","format":false,"excerpt":"Suyun yo\u011funlu\u011fu 0,9998 gr\/cm3 iken, donmu\u015f suyun yani buzun yo\u011funlu\u011fu 0,919 gr\/cm3\u2019t\u00fcr. Di\u011fer s\u0131v\u0131lardan farkl\u0131 olarak suyun donmas\u0131 s\u0131ras\u0131nda birim hacimdeki yo\u011funlu\u011fu azal\u0131r ve hacmi de %8-9 oran\u0131nda artar. Bunun nedeni, normalde oksijen atomuna ba\u011fl\u0131 2 hidrojen atomu aras\u0131ndaki 104,5 \u00ba\u2019lik a\u00e7\u0131n\u0131n donma s\u0131ras\u0131nda alt\u0131gen \u015fekilli buz kristallerini olu\u015fturmak \u00fczere\u2026","rel":"","context":"&quot;\u0130lgin\u00e7 Bilgiler&quot; i\u00e7inde","block_context":{"text":"\u0130lgin\u00e7 Bilgiler","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/vaybee\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":296,"url":"https:\/\/www.karadenizli.biz\/yaren\/kuslar-soguk-havalarda-neden-tuylerini-kabartir\/","url_meta":{"origin":315,"position":1},"title":"Ku\u015flar So\u011fuk Havalarda Neden T\u00fcylerini Kabart\u0131r?","author":"karadenizli","date":"28 \u015eubat 2012","format":false,"excerpt":"Ku\u015flar t\u00fcylerini kabartarak, so\u011fuk havalarda v\u00fccut \u0131s\u0131lar\u0131n\u0131n d\u00fc\u015fmesini engeller. T\u00fcyler kabar\u0131nca t\u00fcylerin i\u00e7ine hava dolar. Hava iyi bir iletken olmad\u0131\u011f\u0131 i\u00e7in d\u0131\u015far\u0131daki so\u011fuk havan\u0131n i\u00e7eri, i\u00e7erideki s\u0131cakl\u0131\u011f\u0131n da d\u0131\u015far\u0131 \u00e7\u0131kmas\u0131n\u0131 b\u00fcy\u00fck oranda engeller. S\u0131cak havalarda ise t\u00fcylerini v\u00fccutlar\u0131na yap\u0131\u015ft\u0131rarak, v\u00fccutlar\u0131n\u0131n serin kalmas\u0131n\u0131 sa\u011flarlar. Pencerelerimizde \u00e7ift cam kulan\u0131lmas\u0131n\u0131n nedeni de bu\u2026","rel":"","context":"&quot;\u0130lgin\u00e7 Bilgiler&quot; i\u00e7inde","block_context":{"text":"\u0130lgin\u00e7 Bilgiler","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/vaybee\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.karadenizli.biz\/yaren\/wp-content\/uploads\/2012\/04\/lessgold.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":411,"url":"https:\/\/www.karadenizli.biz\/yaren\/hiperaktif-hidrojen\/","url_meta":{"origin":315,"position":2},"title":"Hiperaktif Hidrojen","author":"karadenizli","date":"11 Nisan 2011","format":false,"excerpt":"Hidrojen elementler aras\u0131nda en k\u00fc\u00e7\u00fck atom yar\u0131\u00e7ap\u0131na sahip oldu\u011fu i\u00e7in di\u011fer maddelerden yap\u0131lm\u0131\u015f kaplarda gaz halinde depolanam\u0131yor. Hidrojen atomlar\u0131 kab\u0131n atomlar\u0131 aras\u0131ndaki bo\u015fluklardan kolayca ka\u00e7abiliyor. Bu nedenle hidrojen metal hidr\u00fcr tozlar\u0131na so\u011furularak depolan\u0131yor. Kaynak: Bilim Teknik 494-501 aras\u0131 say\u0131lar\u0131ndan birisi \u00a0","rel":"","context":"&quot;\u0130lgin\u00e7 Bilgiler&quot; i\u00e7inde","block_context":{"text":"\u0130lgin\u00e7 Bilgiler","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/vaybee\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6243,"url":"https:\/\/www.karadenizli.biz\/yaren\/matematikle-ilgili-animasyonlar\/","url_meta":{"origin":315,"position":3},"title":"Matematikle \u0130lgili Animasyonlar","author":"karadenizli","date":"14 Kas\u0131m 2015","format":false,"excerpt":"Bu sayfada sizlere zaman zaman ara\u015ft\u0131rma yaparken ba\u015fta Wikipedi olmak \u00fczere internet sitelerinde rastlad\u0131\u011f\u0131m ve matematikle ilgili olan konular\u0131n a\u00e7\u0131kland\u0131\u011f\u0131 animasyonlar\u0131 ve a\u00e7\u0131klay\u0131c\u0131 bilgileri payla\u015faca\u011f\u0131m. Asal Say\u0131 : Yaln\u0131zca 1'e ve kendine b\u00f6l\u00fcnen say\u0131lara asal say\u0131 denir.\u00a0Ba\u015fka bir ifade ile asal say\u0131lar, sadece iki pozitif tamsay\u0131 b\u00f6leni olan do\u011fal say\u0131lard\u0131r.\u2026","rel":"","context":"&quot;E\u011flenceli Matematik&quot; i\u00e7inde","block_context":{"text":"E\u011flenceli Matematik","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/ogrenciler-icin\/eglenceli-matematik\/"},"img":{"alt_text":"Animation_Sieve_of_Eratosth","src":"https:\/\/i0.wp.com\/www.karadenizli.biz\/yaren\/wp-content\/uploads\/2015\/10\/Animation_Sieve_of_Eratosth.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":271,"url":"https:\/\/www.karadenizli.biz\/yaren\/celikten-biraz-sert\/","url_meta":{"origin":315,"position":4},"title":"\u00c7elikten 10 Trilyon Kat Daha Yo\u011fun","author":"karadenizli","date":"6 A\u011fustos 2012","format":false,"excerpt":"Bu bilginin bende \u00f6zel bir yeri var. Bir g\u00fcn otob\u00fcste yolculuk esnas\u0131nda yan\u0131ma bir doktor oturdu. Ordan, burdan, teknolojiden derken konu nerden geldi bilmiyorum bir n\u00f6tron y\u0131ld\u0131z\u0131n\u0131n, \u00e7eli\u011fin 10 milyon kat\u0131 daha yo\u011fun oldu\u011fu bilgisini payla\u015ft\u0131m. Doktor \u015f\u00f6yle bir bak\u0131\u015f att\u0131. Bu kadar da abart\u0131 olmaz dercesine. O bak\u0131\u015f\u0131 g\u00f6r\u00fcnce\u2026","rel":"","context":"&quot;\u0130lgin\u00e7 Bilgiler&quot; i\u00e7inde","block_context":{"text":"\u0130lgin\u00e7 Bilgiler","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/vaybee\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.karadenizli.biz\/yaren\/wp-content\/uploads\/2012\/03\/Neutron.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4249,"url":"https:\/\/www.karadenizli.biz\/yaren\/saat-kac-defa-calar\/","url_meta":{"origin":315,"position":5},"title":"Saat Ka\u00e7 Defa \u00c7alar?","author":"karadenizli","date":"6 May\u0131s 2015","format":false,"excerpt":"Saat ba\u015f\u0131 saat say\u0131s\u0131 kadar ve her yar\u0131m saatte bir \u00e7alan saat 1 g\u00fcnde ka\u00e7 defa \u00e7alar? 2x(1+2+3+4+....+12) = 2x12x13\/2 =156(Gauss Y\u00f6ntemi)\u00a0\u00a0 1 g\u00fcnde 24 yar\u0131m saat vard\u0131r. 156+24= 180 defa \u00e7alar. Matematik bilimlerin krali\u00e7esidir diyen Gauss'a bu\u00a0s\u00f6z\u00fcne\u00a0ithafen matemati\u011fe olan \u00fcst\u00fcn katk\u0131lar\u0131ndan dolay\u0131 Matemati\u011fin Prensi denmi\u015ftir. Yukar\u0131da 1'den 12'ye kadar\u2026","rel":"","context":"&quot;Ak\u0131l Oyunlar\u0131&quot; i\u00e7inde","block_context":{"text":"Ak\u0131l Oyunlar\u0131","link":"https:\/\/www.karadenizli.biz\/yaren\/category\/zekasorulari\/"},"img":{"alt_text":"klasik-duvar-saati","src":"https:\/\/i0.wp.com\/www.karadenizli.biz\/yaren\/wp-content\/uploads\/2015\/05\/klasik-duvar-saati.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/posts\/315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/comments?post=315"}],"version-history":[{"count":0,"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/posts\/315\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/media?parent=315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/categories?post=315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.karadenizli.biz\/yaren\/wp-json\/wp\/v2\/tags?post=315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}