[err:数据源标签'PE.DataSource id="cone" datasource="资料_内容页" itemId="121934" xslt="true" wu="0"'返回数据错，原因：“．”是意外的标记。标记应为“=”。 行 17，位置 519。，源码：12193432187（沪粤版）2019-2020学年度第一学期物理九年级《第十四章 探究欧姆定律》检测卷及答案433.00KB433.00Bdocczwlzx吴珍czwlzx/UploadFiles/UserPic/UserAvatars/15219_150_150.jpg <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?id=121934"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=dayhits&id=121934"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=weekhits&id=121934"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetHits.aspx?hitstype=monthhits&id=121934"></script> <script language="JavaScript" type="text/JavaScript" src="/Common/GetBrowseTimes.aspx?id=121934"></script> <img src="/images/star4.jpg" /> 吴珍 0 探究欧姆定律2020年01月03日/UploadFiles/nopic.gif 一、选择题(每题3分，共36分)1．要使一根镍铬合金接入电路的电阻变大，可采用的方法是(　　)A．增大导线两一、选择题(每题3分，共36分)1．要使一根镍铬合金接入电路的电阻变大，可采用的方法是(　　)A．增大导线两端的电压  B．减小导线中的电流C．将导线拉长后接入电路  D．将导线对折后接入电路2．关于欧姆定律，下列说法中正确的是(　　)A．通过导体的电流跟该导体的电阻成正比，跟该导体两端的电压成反比B．当电压一定时，导体的电阻跟通过该导体的电流成反比C．当通过导体的电流一定时，导体的电阻跟该导体两端的电压成正比[来源:学科网]D．当电阻一定时，通过导体的电流跟它两端的电压成正比3．某导体中的电流与它两端电压的关系如图所示，下列分析正确的是(　　)A．当导体两端的电压为0时，电阻为0  B．该导体的电阻随电压的增大而减小C．当 【内容简介】一、选择题(每题3分，共36分)1．要使一根镍铬合金接入电路的电阻变大，可采用的方法是(　　)A．增大导线两端的电压  B．减小导线中的电流C．将导线拉长后接入电路  D．将导线对折后接入电路2．关于欧姆定律，下列说法中正确的是(　　)A．通过导体的电流跟该导体的电阻成正比，跟该导体两端的电压成反比B．当电压一定时，导体的电阻跟通过该导体的电流成反比C．当通过导体的电流一定时，导体的电阻跟该导体两端的电压成正比[来源:学科网]D．当电阻一定时，通过导体的电流跟它两端的电压成正比3．某导体中的电流与它两端电压的关系如图所示，下列分析正确的是(　　)A．当导体两端的电压为0时，电阻为0  B．该导体的电阻随电压的增大而减小C．当导体两端的电压为0时，电流为0  D．当导体两端的电压为2 V时，电流为0.6 A          第3题图　  　第4题图　     　第5题图　　    第6题图    　 第7题图4．如图所示，AB和BC是由同种材料制成的长度相同、横截面积不同的两段导体，将它们串联后连入电路中。比较这两段导体两端的电压及通过它们的电流的大小，有(　　)A．UAB>UBC，IABUBC，IAB＝IBC D．UAB＝UBC，IAB一、选择题(每题3分，共36分)1．要使一根镍铬合金接入电路的电阻变大，可采用的方法是(　　)A．增大导线两端的电压&#160; B．减小导线中的电流C．将导线拉长后接下载地址1|sj/2020/1/2020139590.doc<p><span style=";font-family:黑体">一、选择题</span><span style=";font-family:'Times New Roman','serif'">(</span>每题<span style=";font-family:'Times New Roman','serif'">3</span>分，共<span style=";font-family:'Times New Roman','serif'">36</span>分<span style=";font-family:'Times New Roman','serif'">)</span></p><p><strong><span style=";font-family:'Times New Roman','serif'">1</span></strong>．要使一根镍铬合金接入电路的电阻变大，可采用的方法是<span style=";font-family:'Times New Roman','serif'">(</span>　　<span style=";font-family:'Times New Roman','serif'">)</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">A</span>．增大导线两端的电压<span style=";font-family:'Times New Roman','serif'">  B</span>．减小导线中的电流</p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">C</span>．将导线拉长后接入电路<span style=";font-family:'Times New Roman','serif'">  D</span>．将导线对折后接入电路</p><p><strong><span style=";font-family:'Times New Roman','serif'">2</span></strong>．关于欧姆定律，下列说法中正确的是<span style=";font-family:'Times New Roman','serif'">(</span>　　<span style=";font-family:'Times New Roman','serif'">)</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">A</span>．<span style=";font-family:'Times New Roman','serif'"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span>通过导体的电流跟该导体的电阻成正比，跟该导体两端的电压成反比</p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">B</span>．当电压一定时，导体的电阻跟通过该导体的电流成反比</p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">C</span>．当通过导体的电流一定时，导体的电阻跟该导体两端的电压成正比<span style=";font-family:'Times New Roman','serif';color:white">[</span><span style=";color:white">来源</span><span style=";font-family:'Times New Roman','serif';color:white">:</span><span style=";color:white">学科网</span><span style=";font-family:'Times New Roman','serif';color:white">]</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">D</span>．当电阻一定时，通过导体的电流跟它两端的电压成正比</p><p><strong><span style=";font-family:'Times New Roman','serif'">3</span></strong>．某导体中的电流与它两端电压的关系如图所示，下列分析正确的是<span style=";font-family:'Times New Roman','serif'">(</span>　　<span style=";font-family:'Times New Roman','serif'">)</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">A</span>．当导体两端的电压为<span style=";font-family:'Times New Roman','serif'">0</span>时，电阻为<span style=";font-family:'Times New Roman','serif'">0  B</span>．该导体的电阻随电压的增大而减小</p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">C</span>．当导体两端的电压为<span style=";font-family:'Times New Roman','serif'"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" />0</span>时，电流为<span style=";font-family:'Times New Roman','serif'">0  D</span>．当导体两端的电压为<span style=";font-family:'Times New Roman','serif'">2 V</span>时，电流为<span style=";font-family:'Times New Roman','serif'">0.6 A</span></p><p><span style=";font-family:'Times New Roman','serif'"><img width="2" height="3" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family:'Times New Roman','serif'"><img width="117" height="95" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family:'Times New Roman','serif'">  </span><span style=";font-family: 'Times New Roman','serif'"><img width="104" height="29" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family:'Times New Roman','serif'">  </span><span style=";font-family:'Times New Roman','serif'"><img width="99" height="87" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family:'Times New Roman','serif'">   </span><span style=";font-family:'Times New Roman','serif'"><img width="80" height="103" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span><span style=";font-family:'Times New Roman','serif'">   </span><span style=";font-family:'Times New Roman','serif'"><img width="106" height="80" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span></p><p style="text-indent:56px">第<span style=";font-family:'Times New Roman','serif'">3</span>题图　<span style=";font-family:'Times New Roman','serif'">  </span>　第<span style=";font-family:'Times New Roman','serif'">4</span>题图　<span style=";font-family:'Times New Roman','serif'">     </span>　第<span style=";font-family:'Times New Roman','serif'">5</span>题图　　<span style=";font-family:'Times New Roman','serif'">    </span>第<span style=";font-family:'Times New Roman','serif'">6</span>题图<span style=";font-family:'Times New Roman','serif'">    </span>　 第<span style=";font-family:'Times New Roman','serif'">7</span>题图</p><p><strong><span style=";font-family:'Times New Roman','serif'">4</span></strong>．如图所示，<span style=";font-family:'Times New Roman','serif'">AB</span>和<span style=";font-family:'Times New Roman','serif'">BC</span>是由同种材料制成的长度相同、横截面积不同的两段导体，将它们串联后连入电路中。比较这两段导体两端的电压及通过它们的电流的大小，有<span style=";font-family:'Times New Roman','serif'">(</span>　　<span style=";font-family:'Times New Roman','serif'">)</span></p><p><span style=";font-family:'Times New Roman','serif'">A</span>．<span style=";font-family:'Times New Roman','serif'">U<sub>AB</sub>&gt;U<sub>BC</sub></span>，<span style=";font-family:'Times New Roman','serif'">I<sub>AB</sub>&lt;I<sub>BC</sub> B</span>．<span style=";font-family:'Times New Roman','serif'">U<sub>AB</sub>&lt;U<sub>BC</sub></span>，<span style=";font-family:'Times New Roman','serif'">I<sub>AB</sub></span>＝<span style=";font-family:'Times New Roman','serif'">I<sub>BC  </sub>C</span>．<span style=";font-family:'Times New Roman','serif'">U<sub>AB</sub>&gt;U<sub>BC</sub></span>，<span style=";font-family:'Times New Roman','serif'">I<sub>AB</sub></span>＝<span style=";font-family:'Times New Roman','serif'">I<sub>BC</sub> D</span>．<span style=";font-family:'Times New Roman','serif'">U<sub>AB</sub></span>＝<span style=";font-family:'Times New Roman','serif'">U<sub>BC</sub></span>，<span style=";font-family:'Times New Roman','serif'">I<sub>AB</sub>&lt;I<sub>BC</sub></span></p><p><strong><span style=";font-family:'Times New Roman','serif'">5</span></strong>．如图所示，<span style=";font-family:'Times New Roman','serif'">R<sub>1</sub></span>与<span style=";font-family:'Times New Roman','serif'">R<sub>2</sub></span>并联在电源电压为<span style=";font-family:'Times New Roman','serif'">3 V</span>的电路中，只闭合开关<span style=";font-family:'Times New Roman','serif'">S<sub>1</sub></span>时，电流表的示数为<span style=";font-family:'Times New Roman','serif'">0.3 A</span>；同时闭合开关<span style=";font-family:'Times New Roman','serif'">S<sub>1</sub></span>和<span style=";font-family:'Times New Roman','serif'">S<sub>2</sub></span>，电流表的示数为<span style=";font-family:'Times New Roman','serif'">0.5 A</span>，则<span style=";font-family:'Times New Roman','serif'">(</span>　　<span style=";font-family:'Times New Roman','serif'">)</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">A</span>．<span style=";font-family:'Times New Roman','serif'">R<sub>1</sub></span>的阻值为<span style=";font-family:'Times New Roman','serif'">60 Ω       B</span>．<span style=";font-family:'Times New Roman','serif'">R<sub>2</sub></span>的阻值为<span style=";font-family:'Times New Roman','serif'">15 Ω</span></p><p style="text-indent:28px"><span style=";font-family:'Times New Roman','serif'">C</span>．通过<span style=";font-family:'Times New Roman','serif'">R<sub>1</sub></span>的电流是<span style=";font-family:'Times New Roman','serif'">0.5 A  D</span>．通过<span style=";font-family:'Times New Roman','serif'">R<sub>2</sub></span>的电流是<span style=";font-family:'Times New Roman','serif'">0.3 A</span></p><p><strong><span style=";font-family:'Times New Roman','serif'">6</span></strong>．在如图所示的电路中，电源电压保持不变。当开关<span style=";font-family:'Arial','sans-serif'">S</span>从断开到闭合时，电路中<span style=";font-family:'Arial','sans-serif'">(</span>　　<span style=";font-family: 'Arial','sans-serif'">)<span style="color:white">[</span></span><span style=";color:white">来源</span><span style=";font-family:'Arial','sans-serif';color:white">:</span><span style=";color:white">学</span><span style=";font-family:'Arial','sans-serif';color:white">]</span></p><p style="text-indent:28px"><span style=";font-family:'Arial','sans-serif'">A</span>．电流表的示数变小，电压表的示数变小<span style=";font-family:'Arial','sans-serif'">  B</span>．电流表的示数<span style=";font-family:'Arial','sans-serif'"><img width="2" height="2" src="http://www.czwlzx.com/UEditor/themes/default/images/spacer.gif" alt="学科网(www.zxxk.com)--教育资源门户，提供试卷、教案、课件、论文、素材及各类教学资源下载，还有大量而丰富的教学相关资讯！" style="background:url(http://www.czwlzx.com/UEditor/themes/default/images/word.gif) no-repeat center center;border:1px solid #ddd" /></span>变小，电压表的示数变大</p><p style="text-indent:28px"><span style=";font-family:'Arial','sans-serif'">C</span>．电流表的示数不变，电压表的示数变小<span style=";font-family:'Arial','sans-serif'">  D</span>．电流表的示数不变，电压表的示数变大</p><p><br /></p>沪粤版不限试题试卷免费doc <img src="/images/nopic.gif" 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    文件大小：{PE.Field id="cone" fieldname="SoftSize" /}{PE.Field id="cone" fieldname="SoftSizeUnit" /}

    资料作者：{PE.Field id="cone" fieldname="author" /}

    审核人员：{PE.Field id="cone" fieldname="editor" /}

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    {PE.Field id="cone" fieldname="Title" /}

    {PE.Label id="A评论标签" nodeId="{PE.Field id="cone" fieldname="NodeID" /}" /}