成考院校在线答案
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2022-09-12
[判断] <p class="MsoNormal">14、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">将一个非正弦周期函数展开或分解为一系列谐波之和的傅里叶级数称为谐波分析。</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal">20、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">网络函数的极点由网络的结构和元件参数确定，而与外加激励无关。</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">16、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">中线的作用得使三相不对称负载保持对称。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning: 0pt">( ) <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal" style="mso-pagination:widow-orphan">19、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">任意两个相邻较近的线圈总要存在着互感现象。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning: 0pt">( ) <o:p></o:p></span></p>
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2022-09-12
[判断] <p class="MsoNormal">20、<span style="mso-spacerun:'yes'; font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; ">理想变压器能变换电压、变换电流，其原、副边电压和电流的变换关系与理想变压器原、副边电压和电流的参考方向和同名端都无关。</span><span style="font-family:Microsoft Yahei; font-size:12.0000pt; mso-font-kerning:1.0000pt; "> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">32、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">两个具有互感的线圈异侧相并联时，其等效电感为<u> <span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span></u>。（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="line-height:16.0pt">37、<span style="font-family:黑体">三相对称交流电路的瞬时功率为（ <span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="line-height:16.0pt">22、<span style="font-family:黑体">在右图所示电路中，<i style="mso-bidi-font-style:normal"><span lang="EN-US">R</span></i>＝<i style="mso-bidi-font-style:normal"><span lang="EN-US">X</span></i><sub><span lang="EN-US">L</span></sub>＝<i style="mso-bidi-font-style:normal"><span lang="EN-US">X</span></i><sub><span lang="EN-US">C</span></sub>，并已知安培表<span lang="EN-US">A<sub>1</sub></span>的读数为<span lang="EN-US">3A</span>，则安培表<span lang="EN-US">A<sub>2</sub></span>、<span lang="EN-US">A<sub>3</sub></span>的读数应为（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="text-indent:15.75pt;mso-char-indent-count:1.5; line-height:18.0pt;mso-line-height-rule:exactly;layout-grid-mode:char"> <!--[if gte vml 1]><v:group id="组合_x0020_2" o:spid="_x0000_s1026" style='position:absolute;left:0; text-align:left;margin-left:62.2pt;margin-top:14.5pt;width:140.3pt;height:59.5pt; 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2022-09-12
[单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; layout-grid-mode:char">28、<span style="font-family:黑体">每只日光灯的功率因数为<span lang="EN-US">0.5</span>，当<span lang="EN-US">N</span>只日光灯相并联时，总的功率因数<u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u>；若再与<span lang="EN-US">M</span>只白炽灯并联，则总功率因数<u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>。</u>（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
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2022-09-12
[单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; layout-grid-mode:char">21、<span style="font-family:黑体">符合无损耗、<span lang="EN-US">K=1</span>和自感量、互感量均为有限值条件的变压器是（<span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="mso-pagination:widow-orphan"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体;mso-font-kerning:0pt"> <o:p> </o:p></span></p>
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