电路如图7.10所示,已知<img src='https://img2.soutiyun.com/latex/latex.action' />若晶闸管的控制角α=30°,则其导通角θ为( )。<img src='https://img2.soutiyun.com/ask/5451001-5454000/abde58fa65c361da53e31695df8d7676.gif' />

A.330° B.150° C.>150° D.<150°

时间:2023-03-17 09:50:50

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