① <img class=jc-formula data-tex=100-50{ e }^{ -200t }V,1-0.5{ e }^{ -200t }A src=https://huaweicloudobs.ahjxjy.cn/07CE0885BF01EC41D4B74934D9DF8D0B.png style=vertical-align: middle;/>
② <img class=jc-formula data-tex=100-50{ e }^{ 200t }V,1-0.5{ e }^{ 200t }A src=https://huaweicloudobs.ahjxjy.cn/390AA18F0C343EEDC22BEBC01A6DA9B5.png style=vertical-align: middle;/>
③ <img class=jc-formula data-tex=100+50{ e }^{ -200t }V,1+0.5{ e }^{ -200t }A src=https://huaweicloudobs.ahjxjy.cn/8B43598B68276D95C2AFE7EAAF065FA7.png style=vertical-align: middle;/>
④ <img class=jc-formula data-tex=100+50{ e }^{ 200t }V,1+0.5{ e }^{ 200t }A src=https://huaweicloudobs.ahjxjy.cn/674B2986B9A63D1A5CF9E2746281C89E.png style=vertical-align: middle;/>
① <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/2D05853C76815C7CF7E22682632CB17E.png data-tex={ n }_{ 1 }=1\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=20W/>
② <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/FDFC60BECA9CC39363CAA5B0B5E848E4.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=2\quad ,\quad { P }_{ max }=20W/>
③ <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/131433945D09038AF269E1A5275736DE.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=20W/>
④ <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/439B923F6E5E50275D1774039E0461F3.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=10W/>
① <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/A33618F57A0BFEDDEEAFC91D2E7059CC.png data-tex={ U }_{ l }=416.3V/>
② <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/13AE67CF84BAC20C550079E89CE305D9.png data-tex={ U }_{ l }=461.3V/>
③ <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/E1341C93714922B632DEBCE4313CF8C6.png data-tex={ U }_{ l }=400V/>
④ <img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/3E1091706B8F7374BA8BE14B1FEDF956.png data-tex={ U }_{ l }=358.2V/>