الكترونيات صناعيه

Page 149

 ‫א‬‫א‬ ‫א‬‫א‬‫א‬

‫ א‬١٤٠

‫א‬

١-



 K‫א‬‫א‬‫א‬ Va ‫א‬‫א‬  K‫א‬Short R Th W‫א‬‫א‬ R Th = R ab

 KE١٩J ٧F‫א‬‫א‬‫א‬‫א‬‫א‬‫א‬ R 1 = 4Ω

R 2 = 8Ω a b

 K‫א‬‫א‬E٦J ٧F‫א‬‫א‬‫א‬E١٩J ٧F

    

 KE٢٠J ٧F‫א‬‫א‬‫א‬‫א‬ R 1 = 4Ω

R 2 = 8Ω a b

 KE١٩J ٧F‫א‬‫א‬‫א‬E٢٠J ٧F

    

 WRTH‫א‬ ∴ R Th = R ab =

4*8 = 2.66Ω 4+8

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