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如图为小颖同学设计的电热水器的原理图，该电热水器具有加热、保温功能．图1中电磁继电器（线圈电阻不计）、热敏电阻R、保护电阻R0、电压恒为6V的电源U1、导线等组成控制电路．当电磁铁线圈中的电流I＜1...
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为了测定某额定功率为1000w的电热水器的效率物理兴趣小组的同学在热水器中加了2kg的水让热水器正常
如图是小林家里电热水器的工作原理图两根加热管电阻相同.电热水器功率有高中低三档.当S.1断开S.2接
无水箱式电热水器具有体积小加热快的优点图甲是它的工作原理图甲乙丙1温控器水温传感器测量到出水温度并将
如图所示为某电热水器的原理示意图发热体分别由R1和R2组成通过通断开关可以使热水器处于加热或保温状态
电热水器是利用通过对水加热的热水器
如图4所示是一台电热水器铭牌上的部分信息请根据铭牌提供的信息解答下列问题[c水=4.2×103J/k
无水箱式电热水器具有体积小加热快的优点图甲是它的工作原理图.1温控器水温传感器测量到出水温度并将信息
为了测定某额定功率为1000W的电热水器的效率物理兴趣小组的同学在热水器中加了2kg的水让热水器正常
图示为某种家用电热水器工作电路的简化图.表中为其三种加热模式的相关参数.1该电热水器的插头应接入孔插
以下最省电的电热水器是
储水式电热水器
即热式电热水器
热泵热水器
普通热水器
某家用电热水器的铭牌如下1为安全起见该电热水器使用的插座应选用图中的哪个2该电热水器正常工作时电热丝
无水箱式电热水器具有体积小加热快的优点图甲是它的工作原理图.1温控器水温传感器测量到出水温度并将信息
某同学家使用电热水器加热洗澡水一次通电0.5小时电热水器正常工作消耗了1.5度电这个电热水器的额定
无水箱式电热水器具有体积小加热快的优点图甲是它的工作原理图.1温控器水温传感器测量到出水温度并将信息
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下面几种热水器按热效率从高到底的排序正确的是
热泵热水器、太阳能热水器、燃气热水器、电热水器
热泵热水器、太阳能热水器、电热水器、燃气热水器
太阳能热水器、热泵热水器、电热水器、燃气热水器
热泵热水器、燃气热水器、太阳能热水器、电热水器
张某购进的电热水器因漏电对张某的人身及财产造成损害依据中国消费者权益保护法的规定张某可以
向质检部门申诉该电热水器生产厂家。
向人民法院起诉该电热水器生产厂家。
与该电热水器生产厂家自行协商解决纠纷。
向消费者协会反映该电热水器的质量问题。
请求消费者协会调解其与该电热水器生产厂家的纠纷。
如图10所示为某种家用电热水器工作电路的简化图.表中为其三种加热模式的相关参数1该电热水器的插头应接
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使用电热水器和热泵热水器将520kg的水从15℃加热到55℃如果电热水器电效率为90％热泵COP=3
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10分Thetraditionofbirthdaypartiesstartedalongtimeago.Therearesometraditionsthatyoucanfindalmostanywhereanytimesuchassendingbirthdaycardsblowingoutthecandlesonabirthdaycakeandsingingthe‘HappyBirthday'song.Othersareonlyfoundforcertainagesandincertaincountries. InChinaonachild'ssecondbirthdayfamilymembersputmanythingsontheflooraroundthechild.AccordingtoChinesetraditionthefirstthingthatthechildpicksuptellsyouwhatthechildwilldolaterinlife. ForJapanesechildrenthethirdfifthandseventhbirthdaysareespeciallyimportant.AtthisagethereisaspecialcelebrationShichi﹣Go﹣SansevenfivethreeinJapanesewhenchildrengotothetemplewearinganewkimono和服.Thepriest僧侣givesthemspecialsweetsandtheparentsusuallyorganizeapartyfortheirfriendsintheirhome. InArgentinaMexicoandseveralotherLatinAmericancountriesgirlshaveaspecialbirthdaycelebrationwhentheyreachtheageoffifteen.Afteraspecialceremony仪式thegirlsdanceawaltzwiththeirfatherandotherboys. Eighteenisthetraditional‘comingofage'﹣theagewheninmanycountriesyouhavetherighttovotejointhearmyandinBritaindrinkalcoholorbuyahouse. InmanyEnglish﹣speakingcountriesatwenty﹣firstbirthdaycakeoftenhasakeyontoporthecakeitselfissometimesintheshapeofakey.Thekeymeansthattheyoungpersonhasgrownupandheorsheisfreetoleaveandenterthefamilyhomeatanytimetheywantto! 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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