مسألة جامدة فى الكهربية

[moustafasofa]

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المسألة بتقول :::


موتور يغذى بقرق جهد 240 فولت ويحتاج الى تيار شدته 12 أمبير لكى يرفع كتلة قيمتها طن واحد بمعدل 8 امتار كل دقيقة .أحسب القدرة الداخلة للموتور والقدرة الخارجة منه وكذالك الكفاءة الكلية له .

[eslambac2010]

المسالة دى فى المثالى

[the.scorpion]

المساله دي في مذكرة الاستاذ عادل يس

[mzak11]

ممكن اجابتها

[abstract20]

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[ديدا محمود]

:)ارجو الاجابه

[جوده الغنيمي]

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[عبدالله عاليه]

القدرة =الشغل \الزمن
1) القدرة الداخلة = T \VIT = VI
القدرة الداخلة =240×12=2880 وات
2)القدرة الخارجة = (1000×9.8×8 )÷ 60 =1306.667وات (حيث الشغل = القوة × المسافة ) ، وبفرض g=9.8 m\s.s
3) الكفاءة= القدرة الخارجة ÷ الداخلة =( 1306.667÷2880 )× 100% = 45.37%

[سيد ابراهيم جبران]

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