成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">25、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">电阻电感电容相串联的正弦交流电路中，复阻抗<span lang="EN-US">Z=<u><span style="mso-spacerun:yes"> </span><sub><span style="mso-spacerun:yes"> </span></sub></u></span>。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>（<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>
- 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">火线上通过的电流称为<u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u>电流，负载上通过的电流称为<u><span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></u>电流。当对称三相负载作<span lang="EN-US">Y</span>接时，数量上<i style="mso-bidi-font-style:normal"><span lang="EN-US">I<sub>l</sub></span></i><span lang="EN-US"><span style="position: relative;top:1.0pt;mso-text-raise:-1.0pt"> <!--[if gte vml 1]><v:shape id="对象_x0020_138" o:spid="_x0000_i1033" type="#_x0000_t75" style='width:9.75pt;height:8.25pt' o:ole=""> <v:imagedata src="DLYL22.files/image018.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="13" height="11" v:shapes="对象_x0020_138" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image019.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="4" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_138" DrawAspect="Content" ObjectID="_1678081896"> </o:OLEObject> </xml><![endif]--><u><span style="mso-spacerun:yes"> </span></u><i style="mso-bidi-font-style:normal">I</i><sub>p</sub></span>；当对称三相负载Δ接，<i style="mso-bidi-font-style:normal"><span lang="EN-US">I<sub>l</sub></span></i><span lang="EN-US"><span style="position:relative;top:1.0pt;mso-text-raise:-1.0pt"> <!--[if gte vml 1]><v:shape id="对象_x0020_139" o:spid="_x0000_i1034" type="#_x0000_t75" style='width:9.75pt; height:8.25pt' o:ole=""> <v:imagedata src="DLYL22.files/image018.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="13" height="11" v:shapes="对象_x0020_139" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image019.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="4" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_139" DrawAspect="Content" ObjectID="_1678081897"> </o:OLEObject> </xml><![endif]--><u><span style="mso-spacerun:yes"> </span></u><i style="mso-bidi-font-style:normal">I</i><sub>p</sub></span>。（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）</span><span lang="EN-US" style="font-family:黑体"> <o:p></o:p></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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">40、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">我们把三个<u> <span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span></u>相等、<u> <span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span></u>相同，在相位上互差<u><span lang="EN-US"><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></span></u>度的正弦交流电称为对称三相交流电。（<span lang="EN-US">C<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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:16.0pt">31、<span style="font-family:黑体">符合全耦合、参数无穷大、无损耗<span lang="EN-US">3</span>个条件的变压器称为（<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="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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly; layout-grid-mode:char">32、<span style="font-family:黑体">在<i style="mso-bidi-font-style: normal"><span lang="EN-US">RL</span></i>串联的交流电路中，<i style="mso-bidi-font-style: normal"><span lang="EN-US">R</span></i>上端电压为<span lang="EN-US">16V</span>，<i style="mso-bidi-font-style:normal"><span lang="EN-US">L</span></i>上端电压为<span lang="EN-US">12V</span>，则总电压为（<span lang="EN-US"><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>
- 2022-09-12 [单选] <p class="MsoNormal">29、 <!--[if gte vml 1]><v:group id="组合_x0020_143" o:spid="_x0000_s1167" style='position:absolute;left:0;text-align:left;margin-left:105.35pt; margin-top:23.8pt;width:170.25pt;height:101.4pt;z-index:251661312; mso-position-horizontal-relative:text;mso-position-vertical-relative:text' coordorigin="5859,9090" coordsize="3405,2028"> <v:shape id="对象_x0020_144" o:spid="_x0000_s1168" type="#_x0000_t75" style='position:absolute; left:5859;top:9090;width:3405;height:1830'> <v:imagedata src="DLYL22.files/image074.wmz" o:title=""></v:imagedata> </v:shape><v:shape id="文本框_x0020_145" o:spid="_x0000_s1169" type="#_x0000_t202" style='position:absolute;left:7329;top:10806;width:420;height:312' filled="f" stroked="f"> <v:textbox inset="0,0,0,0"> <![if !mso]> <table _tmplitem="4" cellpadding=0 cellspacing=0 width="100%"> <tr _tmplitem="4" > <td _tmplitem="4" ><![endif]> <div _tmplitem="4" > <p _tmplitem="4" class=MsoNormal><span _tmplitem="4" style='font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"'>图</span><span _tmplitem="4" lang=EN-US>6</span></p> </div> <![if !mso]></td> </tr> </table> <![endif]></v:textbox> </v:shape></v:group><![if gte mso 9]><o:OLEObject Type="Embed" ShapeID="对象_x0020_144" DrawAspect="Content" ObjectID="_1678081922"> <o:WordFieldCodes>\* MERGEFORMAT</o:WordFieldCodes> </o:OLEObject> <![endif]><![endif]--> <!--[if !vml]--><span style="mso-ignore:vglayout;position: absolute;z-index:251661312;left:0px;margin-left:141px;margin-top:32px; width:227px;height:137px"><img width="227" height="137" v:shapes="组合_x0020_143 对象_x0020_144 文本框_x0020_145" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image075.png"></span> <!--[endif]--><span style="font-family:黑体">图<span lang="EN-US">6</span>所示含理想变压器电阻电路中输出电压<i style="mso-bidi-font-style:normal"><span lang="EN-US">u</span></i></span><span lang="EN-US" style="font-size:7.0pt;mso-bidi-font-size:12.0pt;font-family:黑体; position:relative;top:2.0pt;mso-text-raise:-2.0pt">2</span><span style="font-family:黑体">与激励电流<i style="mso-bidi-font-style:normal"><span lang="EN-US">i</span></i></span><span lang="EN-US" style="font-size:7.0pt; mso-bidi-font-size:12.0pt;font-family:黑体;position:relative;top:2.0pt; mso-text-raise:-2.0pt">s</span><span style="font-family:黑体">的关系可表示为<span lang="EN-US"><span style="mso-spacerun:yes"> </span>(<span style="mso-spacerun:yes"> </span>) <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> <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> <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> <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> <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> <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> <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>
- 2022-09-12 [单选] <p class="MsoNormal" style="margin-left:0cm;text-indent:0cm;line-height:18.0pt; mso-line-height-rule:exactly;mso-list:l0 level1 lfo1">34、 <!--[if !supportLists]--><span lang="EN-US" style="font-family:黑体;mso-bidi-font-family:黑体"><span style="mso-list:Ignore">2、</span></span> <!--[endif]--><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体">RLC</span><span style="mso-bidi-font-size:10.5pt;font-family:黑体">谐振发生时，电路中的角频率<span lang="EN-US"><span style="position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"></v:stroke> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"></v:f> <v:f eqn="sum @0 1 0"></v:f> <v:f eqn="sum 0 0 @1"></v:f> <v:f eqn="prod @2 1 2"></v:f> <v:f eqn="prod @3 21600 pixelWidth"></v:f> <v:f eqn="prod @3 21600 pixelHeight"></v:f> <v:f eqn="sum @0 0 1"></v:f> <v:f eqn="prod @6 1 2"></v:f> <v:f eqn="prod @7 21600 pixelWidth"></v:f> <v:f eqn="sum @8 21600 0"></v:f> <v:f eqn="prod @7 21600 pixelHeight"></v:f> <v:f eqn="sum @10 21600 0"></v:f> </v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"></v:path> <o:lock v:ext="edit" aspectratio="t"></o:lock> </v:shapetype><v:shape id="对象_x0020_121" o:spid="_x0000_i1025" type="#_x0000_t75" style='width:27pt;height:18pt' o:ole=""> <v:imagedata src="DLYL22.files/image002.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="36" height="24" v:shapes="对象_x0020_121" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image003.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="4" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_121" DrawAspect="Content" ObjectID="_1678081888"> </o:OLEObject> </xml><![endif]--><u><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></u></span>，<span lang="EN-US"><span style="position:relative;top:6.0pt;mso-text-raise:-6.0pt"> <!--[if gte vml 1]><v:shape id="对象_x0020_122" o:spid="_x0000_i1026" type="#_x0000_t75" style='width:24.75pt; height:18pt' o:ole=""> <v:imagedata src="DLYL22.files/image004.wmz" o:title=""></v:imagedata> </v:shape><![endif]--> <!--[if !vml]--><img width="33" height="24" v:shapes="对象_x0020_122" src="http://wljy.whut.edu.cn:80/uploadfiles/word/DLYL22.files/image005.png"> <!--[endif]--></span> <!--[if gte mso 9]><xml _tmplitem="4" > <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="对象_x0020_122" DrawAspect="Content" ObjectID="_1678081889"> </o:OLEObject> </xml><![endif]--><u><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></u></span>。<span lang="EN-US">(<span style="mso-spacerun:yes"> </span>)</span></span><span lang="EN-US" style="font-family:黑体"> <o:p></o:p></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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">38、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">电阻电感电容相并联的正弦交流电路中，复导纳<span lang="EN-US">Y=<u> <span style="mso-spacerun:yes"> </span><span style="mso-spacerun:yes"> </span></u></span>。<span lang="EN-US"><span style="mso-spacerun:yes"> </span>(<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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">36、<i style="mso-bidi-font-style:normal"><span lang="EN-US" style="mso-bidi-font-size: 10.5pt;font-family:黑体">R</span></i><span style="mso-bidi-font-size:10.5pt; font-family:黑体">、<i style="mso-bidi-font-style:normal"><span lang="EN-US">L</span></i>、<i style="mso-bidi-font-style:normal"><span lang="EN-US">C</span></i>串联电路中，电路复阻抗虚部大于零时，电路呈<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 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>
- 2022-09-12 [单选] <p class="MsoNormal" style="line-height:18.0pt;mso-line-height-rule:exactly">31、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">电感元件的正弦交流电路中，电压有效值不变，当频率增大时，电路中电流将（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）<span lang="EN-US"> <o:p></o:p></span></span></p> <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly"><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:黑体"> <o:p> </o:p></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>