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马宇逸2592电吹风是现代家庭的常用电器.图1是点吹风的电器原理图,R是电热丝,M是带动风扇转动的电动机.某电吹风�电吹风是现代家庭的常用电器.图1是点吹风的... -
厉翁禄13373886990 ______[答案] 图1是点吹风的电器原理图,R是电热丝,M是带动风扇转动的电动机.某电吹风的主要技术参数如下所示:额定电压220V,频率50Hz,吹热风时功率880W,吹冷风是功率80W.50
马宇逸25922011年烟台中考卷第28题(物理):电吹风是现代家庭常用的电器,图23是小华家中使用的电吹风? -
厉翁禄13373886990 ______[答案] 乙电路更符合实际 26400J
马宇逸2592求一款风力特大的电吹风机,我要给电脑除尘 -
厉翁禄13373886990 ______ 一般来说,风力大和电机有关,目前电吹风一般最大功率就是采用2300W的吧.呵呵.图片供参考!产品名称:变频智能电吹风 产品型号:dob-2233 产品功率:2300W 电压/频率:AC220-240V/50Hz 产品颜色:黑色经典风速:17米/秒 最高温度:175°C 电机配置:高转速电机 包装数量:12/24台每件 包装尺寸:24台(60*49*58cm) 电源线长度:3.5米
马宇逸2592大家帮忙看看这个电吹风的价格,君喜电吹风,超市专供的,型号是JX - 8012,1800.功率1200W.不胜感激! -
厉翁禄13373886990 ______ 我做吹风机销售的,不过没听说过君喜这个牌子.. 1200W属于家用型的,专业机要1800W以上. 很多吹风机的功率都存在虚标的现象 康夫在专业机的那个领域做的还不错! 你参考下,希望能帮到你
马宇逸2592电吹风是现代家庭常用的电器,图1是小华家中使用的电吹风,使用过程中,她发现电吹风既可以吹热风,又可以吹冷风.根据这个现象她断定:在电吹风中有... -
厉翁禄13373886990 ______[答案] (1)①甲图中,开关置于1和2之间时,电动机不能工作,只加热,不吹风,这样吹风机会因过热而烧坏; 开关置于2和3之间时,电热丝和电动机都工作,吹热风; ②乙图中,开关置于1和2之间时,电动机工作,吹冷风,开关置于2和3之间时,电热丝...
马宇逸2592图甲是一种常见的用电器--电吹风,它既可以吹热风,又可以吹冷风.图乙是电吹风的电路示意图,图中开关所在的位置(阴影部分)表示触点O与触点1、2同... -
厉翁禄13373886990 ______[答案] 触点O与触点1、2同时接通时,元件a、b都是断路;触点O与触点2、3同时接通时,元件a通路;触点O同时接通3、4时,元件a、b并联都能工作.因为电动机可以单独工作(吹出冷风),所以元件a为电动机,b为电热丝;它们的连接发生为并联;如...
马宇逸2592蜜风中的吹风是什么意思? -
厉翁禄13373886990 ______ 吹风是蜜风特有的心情微博,可以发布话题故事、分享位置状态、寻求帮助宽慰等,通过吹风可以结交志趣相投的朋友. 特色一:同步到新浪微博.设置吹风同步,一条吹风可同时发布在蜜风和新浪微博上,让更多人了解你的最新动态. 特色二:图话吹风.不再是单调的纯文字,只要点击“写吹风”选择右侧“图话”按钮,选择合心意的动态图片,就可以发布更好玩更生动的图文动态吹风.
马宇逸2592某型号电吹风的内部电路图及铭牌如图1所示,图中M为电动机,R为电热丝.该电吹风有“热风”和“冷风”两种功能,可通过开关的通断来切换.小明从一个... -
厉翁禄13373886990 ______[答案] (1):根据P=U2 R可知热风时电热丝的电阻为:R 热= U2 P 热=220*220900Ω═55Ω; (2):由于电吹风的额定电流为I=PU=900220A=4.1A,所以测量常温下电阻丝电阻时电流...
马宇逸2592电吹风的电路图 -
厉翁禄13373886990 ______ 如图所示是一把既能吹冷风 , 又能吹热风的电吹风的简化电路图 , 其中A是吹风机 ,B 是电热丝 我是[email protected]
马宇逸2592 图所示的装置上方为一个粗细不均匀的两头开口的玻璃管,管下连通一个装有红墨水的U形管AB.当用吹风机向玻璃管中吹风时,出现的现象是____ - ... -
厉翁禄13373886990 ______[答案] A管液面下降,B管液面上升