[电功率] 2022年初中物理电能的计量 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电能的计量 电能单位是焦耳(J),生活常用千瓦时(KWh)。 电能表测耗电能,用电等于计数...
[电压与电阻] 2022年初中物理特殊方法测电阻之双伏法 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[电压与电阻] 2022年初中物理特殊方法测电阻之双伏法 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[电压与电阻] 2022年初中物理特殊方法测电阻之单安法 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[电压与电阻] 2022年初中物理特殊方法测电阻之双安法 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[电压与电阻] 2022年初中物理半导体和超导现象 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 半导体和超导现象 1. 半导体:有一些材料(如硅、锗)的导电性能介于导体和绝缘体之间...
[电压与电阻] 2022年初中物理影响电阻大小的因素 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 影响电阻大小的因素 导体的电阻是导体本身的一种性质,它的大小与导体的长度、横截...
[电压与电阻] 2022年初中物理电阻定义 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电阻 1. 定义:电阻表示导体对电流阻碍作用的大小。 2. 对电阻的理解 (1)导体的电阻越...
[电压与电阻] 2022年初中物理伏安法测电阻 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 伏安法测电阻 1.定义:用电压表和电流表分别测出电路中某一导体两端的电压和通过的...
[电压与电阻] 2022年初中物理关于电压电阻 2022-09-08
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 电压电阻 常见的电压值:家庭照明电路电压220V;一节干电池1.5V; 对人体安全的电101教育...