題目列表(包括答案和解析)
某交流發(fā)電機產(chǎn)生的感應電動勢與時間的關系是e=100sin50πtV如果其他條件不變,僅使線圈的轉速加倍,則交流電動勢的最大值和周期分別變?yōu)?nbsp; ( )
A.400V, 0.02s B.200V,0.02s C.400V,0.08s D.200V,0.08s
某交流發(fā)電機產(chǎn)生的感應電動勢與時間的關系是e=100sin50πtV如果其他條件不變,僅使線圈的轉速加倍,則交流電動勢的最大值和周期分別變?yōu)?nbsp; ( )
A.400V, 0.02s B.200V,0.02s C.400V,0.08s D.200V,0.08s
某交流發(fā)電機產(chǎn)生的感應電動勢與時間的關系是e=100sin50πtV如果其他條件不變,僅使線圈的轉速加倍,則交流電動勢的最大值和周期分別變?yōu)?nbsp; ( )
A.400V, 0.02s B.200V,0.02s C.400V,0.08s D.200V,0.08s
某交流發(fā)電機產(chǎn)生的感應電動勢與時間的關系如圖所示,如果其他條件不變,僅使線圈的轉速加倍,則交流電動勢的最大值 和周期分別為( )
A.400V,0.02s B.200V,0.02s
C.400V,0.08s D.200V,0.08s
A.400V,0.02s
B.200V,0.02s
C.400V,0.08s
D.200V,0.08s
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