Nazoratishlari va laboratoriyala r

Hisoblash

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Laboratoriya ishi-3
MAVZU: TOK MANBAYINING EYuK VA ICHKI QARSHILIGINI ANIQLASH
Ishning maqsadi: ampermetr va voltmetr yordamida tok manbayining elektr yurituvchi kuchini va ichki qarshiligini aniqlash.
Kerakli asboblar: 1) laboratoriya universal tok manbayi yoki akkumulyator batareyasi; 2) ampermetr; 3) voltmetr; 4) ulovchi simlar; 5) kalit, 6) ulovchi simlari; 6) 10 Ω va 20 Ω qarshilikka ega bo’lgan rezistorlar.
Ishning bajarilishi

1. 
   r asmda keltirilgan elektr zanjiri yig‘iladi. Zanjirga 10 Ω qarshilikli rezistorni ulang.
   
2. 
   Kalit ochiq holda voltmetr ko‘rsatishi U_v yozib olinadi.
   

U_v = ε ga teng deb olinadi.

3. 
   Uzib-ulagich ulanadi va ampermetr ko‘rsatishi I_A yozib olinadi.
   
4. 
   Natijalari jadvalga ko‘chiriladi.
   

Tajriba

𝑼𝒗 , V