20秋学期《电工学》在线平时(1) 参考资料
20秋学期电工学在线平时作业2 1 单选题 1 <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">一个电压为<span lang="EN-US">20V的电压源和<span lang="EN-US">10欧姆电阻串联,可等效为一个电流源和电阻并联的电路。其中电流和电阻分别为<span lang="EN-US">( <span style="mso-spacerun: yes">)。A <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">2A<span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和<span lang="EN-US">10欧姆 B <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">200A<span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和<span lang="EN-US">10欧姆C <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">其它2 <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">两个<span lang="EN-US">20欧姆电阻并联,其等效电阻<span lang="EN-US">R为<span lang="EN-US"> (<span style="mso-spacerun: yes"> )。A <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">R=40<span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">欧姆B <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">R=10<span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">欧姆C <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">其它3 <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE: 12pt; TOP: 3pt; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: Times New Roman; mso-bidi-font-family: Times New Roman; mso-text-raise: -3.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">当一个<span lang="EN-US">40欧姆的电阻和一个<span lang="EN-US">40欧姆的容抗串联,其等效复阻抗<span lang="EN-US">Z的阻抗角为<span lang="EN-US"> (<span style="mso-spacerun: yes"> )度.A <span style="POSITION: relative; LAYOUT-GRID-MODE: line; FONT-FAMILY: 宋体; COLOR: black; FONT-SIZE