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Clearnote
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Senior High
Physics
請問這題 CD怎麼算?
Physics
Senior High
over 2 yearsago
不會很正常吧
請問這題 CD怎麼算?
解答 而磁鐵棒掉入玻璃管中,則無電磁感應現象,故所需時間等於 2h g )22.有一理想變壓器,主線圈及副線圈的匝數各為 N及N,。設 N, > N,則下列敘述 之比為 N: Na (B)主線圈輸入交流電的頻率和副線圈輸入交 流電 N 的頻率之比為N: 出的電流為 NI N₂ C N=Nz-V1.V2 ? (A)主線圈的輸入功率和副線圈的輸出功率 (C)若主線圈輸入的交流電流為1時,則副線圈輸 何者正確 N₁E (D)若主線圈輸入的交流電壓為時,則副線圈輸出的電壓為 (E)此變壓器為升壓變壓器。 N₂
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