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Clearnote
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Senior High
Physics
請問這題~
Physics
Senior High
5 monthsago
認真的巧虎
請問這題~
類題 如圖所示,在光電效應的裝置中,用光照射P,伏特計讀數為 6 V,安培計顯示電流(毫安培)的大小,S為可變電阻上之可 動接點,則以下敘述中哪些正確?(應選2項) (A)S向電阻右端移動,則加大 (B)V加大同時,安培計讀數必然跟著上升 AE (C)S向電阻左端移動時,則減小,且安培計讀數也將減少 (D)S移至電阻左端時安培計讀數I為零 (E)/愈大則光電子到達C極的速率愈小。 P C ① HIIH
物理
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