題目列表(包括答案和解析)
A.0.01s | B.0.02s | C.0.03s | D.0.04s |
A.400V,0.02s
B.200V,0.02s
C.400V,0.04s
D.400V,0.08s
某交流發(fā)電機(jī)產(chǎn)生的感應(yīng)電動(dòng)勢(shì)與時(shí)間的關(guān)系如圖所示,如果其他條件不變,僅使線圈的轉(zhuǎn)速加倍,則交流電動(dòng)勢(shì)的最大值和周期分別為( )
A.400V,0.02s
B.200V,0.02s
C.400V,0.04s
D.400V,0.08s
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