2008中考专题复习十:欧姆定律
加入VIP免费下载

2008中考专题复习十:欧姆定律

ID:121511

大小:74.43 KB

页数:11页

时间:2009-03-29

温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,天天资源网负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。
网站客服:403074932
资料简介
#TRS_AUTOADD_1211856210314 { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px } #TRS_AUTOADD_1211856210314 P { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px } #TRS_AUTOADD_1211856210314 TD { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px } #TRS_AUTOADD_1211856210314 DIV { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px } #TRS_AUTOADD_1211856210314 LI { MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px } /**---JSON-- {"":{"margin-top":"0","margin-bottom":"0"},"p":{"margin-top":"0","margin-bottom":"0"},"td":{"margin-top":"0","margin-bottom":"0"},"div":{"margin-top":"0","margin-bottom":"0"},"li":{"margin-top":"0","margin-bottom":"0"}} --**/ DIV.MyFav_1210819720386 P.MsoNormal{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 LI.MsoNormal{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 DIV.MsoNormal{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 H4{FONT-WEIGHT: normal; TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 48pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 H6{FONT-WEIGHT: bold; FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 黑体; TEXT-ALIGN: center}DIV.MyFav_1210819720386 P.MsoHeader{BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: center}DIV.MyFav_1210819720386 LI.MsoHeader{BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: center}DIV.MyFav_1210819720386 DIV.MsoHeader{BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: medium none; PADDING-LEFT: 0cm; FONT-SIZE: 9pt; PADDING-BOTTOM: 0cm; MARGIN: 0cm 0cm 0pt; BORDER-LEFT: medium none; LAYOUT-GRID-MODE: char; PADDING-TOP: 0cm; BORDER-BOTTOM: medium none; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: center}DIV.MyFav_1210819720386 P.MsoFooter{FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"}DIV.MyFav_1210819720386 LI.MsoFooter{FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"}DIV.MyFav_1210819720386 DIV.MsoFooter{FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; LAYOUT-GRID-MODE: char; FONT-FAMILY: "Times New Roman"}DIV.MyFav_1210819720386 P.MsoPlainText{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 宋体; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 LI.MsoPlainText{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 宋体; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 DIV.MsoPlainText{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: 宋体; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 P{FONT-SIZE: 12pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FONT-FAMILY: 宋体}DIV.MyFav_1210819720386 P.MsoAcetate{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 LI.MsoAcetate{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 DIV.MsoAcetate{TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 9pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify}DIV.MyFav_1210819720386 DIV.Section1{page: Section1}DIV.MyFav_1210819720386 OL{MARGIN-BOTTOM: 0cm}DIV.MyFav_1210819720386 UL{MARGIN-BOTTOM: 0cm}   一、选择题(选择一个正确答案,共15题,每题2分,计30分)     1.根据欧姆定律可以得到R=U/I,由此下列判断正确的是(    )     A.导体的电阻跟加在它两端的电压成正比,电压为零时电阻就等于零     B.导体的电阻跟通过它的电流成反比,没有电流通过时就没有电阻     C.导体的电阻等于加在它两端电压跟通过它的电流的比值     D.以上说法都不正确     2.某同学在探究“电流跟电压、电阻的关系”时,根据收集到的数据画出了如图1所示的一个图像,下列结论与图像相符的是(    )   图1     A.电阻一定时,电流随着电压的增大而增大     B.电阻一定时,电压随着电流的增大而增大     C.电压一定时,电流随着电阻的增大而减小     D.电压一定时,电阻随着电流的增大而减小     3.如图2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,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(    )   图2     A.UAB>UBC,IAB

10000+的老师在这里下载备课资料