‫‪f‬‬
‫ﻻﺕ ﭘﻴﺸﻨﻬﺎﺩﻱ ﮐﻮﺋﻴﺰ ﺩﻭﻡ ﻣﻣﺪﺍﺭﻫﺎﻱ ﺍﻟﮑﺘﺮﺮﻳﮑﻲ‬
‫ﺳﻮﺍﻻ‬
‫ﺳﻮﺍﻝ ‪۱‬‬
‫ﺳ‬
‫ﻣﻣﺪﺍﺭ ﻣﻌﺎﺩﻝ ﺗﻮﻧﻧﻦ ﺩﺭ ﺳﺮﻫﺎﻱ ‪ A‬ﻭ ‪ B‬ﺷﮑﻞ ﺯﻳﻳﺮ ﺭﺍ ﺑﻴﺎﺑﻴﺪ‪) .‬ﮐﻨﮑﮑﻮﺭ ﺳﺮﺍﺳﺮﻱ ـ ‪(۱۳۸۳۳‬‬
‫‪16Ω‬‬
‫‪A‬‬
‫‪20V‬‬
‫‪5A‬‬
‫‪10Ω‬‬
‫‪10Ω‬‬
‫‪10A‬‬
‫‪3Vx‬‬
‫‪20Ω‬‬
‫‪+‬‬
‫‪Vx‬‬
‫‪-‬‬
‫‪5V‬‬
‫‪+‬‬
‫―‬
‫‪B‬‬
‫ﺳﻮﺍﻝ ‪۲‬‬
‫ﺳ‬
‫ﻣﻣﺪﺍﺭ ﻣﻌﺎﺩﻝ ﺗﻮﻧﻧﻦ ﺩﺭ ﺳﺮﻫﺎﻱ ‪ A‬ﻭ ‪ B‬ﺷﮑﻞ ﺯﻳﻳﺮ ﺭﺍ ﺑﻴﺎﺑﻴﺪ‪.‬‬
‫‪6V‬‬
‫‪i‬‬
‫‪A‬‬
‫‪6Ω‬‬
‫‪2Ω‬‬
‫↓‬
‫↓‬
‫‪0.4Ω‬‬
‫ﺳﻮﺍﻻﺕ ﭘﻴﺸﻨﻬﺎﺩﻱ ﮐﻮﺋﻴﺰ ﺩﻭﻡ ﻣﻣﺪﺍﺭﻫﺎﻱ ﺍﻟﮑﺘﺮﻳﮑﮑﻲ‬
‫ﺳ‬
‫‪1Ω‬‬
‫‪10Ω‬‬
‫―‬
‫‪2i‬‬
‫‪+‬‬
‫‪١‬‬
‫‪6v‬‬
‫‪3v‬‬
‫‒ ‪+v‬‬
‫‪2Ω‬‬
‫‪16Ω‬‬
‫‪B‬‬
‫ﺳﻮﺍﻝ ‪۳‬‬
‫ﻣﺸﺨﺼﻪﻱ ﺟﺮﻳﺎﻥ ـ ﻭﻟﺘﺎﮊ ﻣﻌﺎﺩﻝ ﺗﻮﻧﻦ ﺩﻭ ﺷﺒﮑﻪ ‪ A‬ﻭ ‪ B‬ﺩﺭ ﻧﻤﻮﺩﺍﺭﻫﺎﻱ ﺯﻳﺮ ﺩﺍﺩﻩ ﺷﺪﻩ ﺍﺳﺖ‪ .‬ﻣﻘﺪﺍﺭ‬
‫ﻭ‬
‫ﺭﺍ ﺑﺪﺳﺖ ﺁﻭﺭﻳﺪ‪.‬‬
‫ﺳﻮﺍﻝ ‪۴‬‬
‫ﻣﻲﺧﻮﺍﻫﻴﻢ ﻳﮏ ﺁﻧﺘﻦ ﺭﺍ ﺑﻪ ﺩﻭ ﺗﻠﻮﻳﺰﻳﻮﻥ ﻭﺻﻞ ﮐﻨﻴﻢ‪ .‬ﻣﺪﺍﺭ ﻣﻌﺎﺩﻝ ﺗﻮﻧﻦ ﺁﻧﺘﻦ‪ ،‬ﻳﮏ ﻣﻨﺒﻊ ﻭﻟﺘﺎﮊ ﺳﺮﻱ ﺑﺎ ﻣﻘﺎﻭﻣﺖ ‪ 300Ω‬ﻭ ﻣﻘﺎﻭﻣﺘﻲ ﮐﻪ ﺍﺯ‬
‫ﮐﺎﺑﻞ ﻣﺘﺼﻞ ﺑﻪ ﺗﻠﻮﻳﺰﻳﻮﻥ ﻧﻴﺰ ﺩﻳﺪﻩ ﻣﻲﺷﻮﺩ ﻧﻴﺰ ‪ 300Ω‬ﺍﺳﺖ‪ .‬ﺑﺮﺍﻱ ﺍﻳﻦﮐﺎﺭ‪ ،‬ﻣﺪﺍﺭﻱ ﻣﺘﺸﮑﻞ ﺍﺯ ‪ ۳‬ﻣﻘﺎﻭﻣﺖ‬
‫ﭘﻴﺸﻨﻬﺎﺩ ﺷﺪﻩ ﺍﺳﺖ‪ .‬ﺑﺮﺍﻱ ﺍﻳﻨﮑﻪ ﻣﺎﮐﺰﻳﻤﻢ ﺗﻮﺍﻥ ﺑﻪ ﺗﻠﻮﻳﺰﻳﻮﻥﻫﺎ ﻣﻨﺘﻘﻞ ﺷﻮﺩ‪ ،‬ﻣﻘﺪﺍﺭ‬
‫‪300Ω‬‬
‫ﭼﻘﺪﺭ ﺑﺎﻳﺪ ﺑﺎﺷﺪ؟‬
‫ﺗﻠﻮﻳﺰﻳﻮﻥ ﺍﻭﻝ‬
‫ﺁﻧﺘﻦ‬
‫‪R‬‬
‫‪Vs‬‬
‫‪R‬‬
‫‪300Ω‬‬
‫ﺗﻠﻮﻳﺰﻳﻮﻥ ﺩﻭﻡ‬
‫‪٢‬‬
‫ﺳﻮﺍﻻﺕ ﭘﻴﺸﻨﻬﺎﺩﻱ ﮐﻮﺋﻴﺰ ﺩﻭﻡ ﻣﺪﺍﺭﻫﺎﻱ ﺍﻟﮑﺘﺮﻳﮑﻲ‬
‫ﺑﻪ ﺻﻮﺭﺕ ﺷﮑﻞ ﺯﻳﺮ‬
‫ﺳﻮﺍﻝ ‪۵‬‬
‫ﻣﻘﺎﻭﻣﺖ ‪ R‬ﭼﻘﺪﺭ ﺑﺎﺷﺪ ﺗﺎ ﻣﺎﮐﺰﻳﻤﻢ ﺗﻮﺍﻥ ﺭﺍ ﺟﺬﺏ ﮐﻨﺪ؟‬
‫‪3Ω‬‬
‫‪3V‬‬
‫‪R‬‬
‫‪6Ω‬‬
‫―‬
‫‪+‬‬
‫‪6Ω‬‬
‫ﺳﻮﺍﻝ ‪۶‬‬
‫ﻣﻘﺪﺍﺭ‬
‫ﺭﺍ ﺣﺴﺎﺏ ﮐﻨﻴﺪ‪ .‬ﺗﻤﺎﻣﻲ ﻣﻘﺎﻭﻣﺖﻫﺎ ‪ R‬ﺍﺳﺖ‪.‬‬
‫ﺳﻮﺍﻻﺕ ﭘﻴﺸﻨﻬﺎﺩﻱ ﺍﺯ ﮐﺘﺎﺏ )ﻭﻳﺮﺍﻳﺶ ﻫﻔﺘﻢ(‬
‫ﻓﺼﻞ ﭘﻨﺠﻢ‪:‬‬
‫‪7, 8, 12, 23, 29, 46, 47, 49, 50, 56, 61, 64, 75, 76‬‬
‫ﺳﻮﺍﻻﺕ ﻣﻌﺎﺩﻝ ﺍﺯ ﮐﺘﺎﺏ ﻭﻳﺮﺍﻳﺶ ﺷﺸﻢ‪:‬‬
‫‪3, 4, 8, 17, 23, 33, 34, 36, 37, 43, 47, 50, 61, 62‬‬
‫‪٣‬‬
‫ﺳﻮﺍﻻﺕ ﭘﻴﺸﻨﻬﺎﺩﻱ ﮐﻮﺋﻴﺰ ﺩﻭﻡ ﻣﺪﺍﺭﻫﺎﻱ ﺍﻟﮑﺘﺮﻳﮑﻲ‬