本文目录一览:
- 1、电器功率越大费电越多吗
- 2、电源瓦数越大越费电吗?
- 3、瓦数越大越费电吗
电器功率越大费电越多吗
相同时间下,电器功率越大费电越多。
电器的耗电,主要有两个因素,一是电器的功率,二是电器使用的时间。
用电的“度数”是:1000瓦/小时=1度。
假设一个电器的功率是100瓦,使用了2个小时,计算公式就是100*2/1000= 0.2度,使用了15小时就是 100*15/1000=1.5度。
假设一个电水壶是1500瓦,烧开一壶水用12分钟(0.2小时)耗电量是 1500*0.2/1000=0.3度
一个100瓦的电灯,一晚上要开8小时,耗电是:100*8/1000=0.8度。
所以两个电器使用同样的时间,电器功率越大耗电越多。
扩展资料:
家用电器的省电 ***
在选购家用电器时,尽量选择带开关的插座,并养成良好的生活习惯,长时间不使用电器时,要记得将电源直接关掉。
家电不要待机。电视、空调等家用电器,在电源开关未关闭的情况下,它们内部的红外线接收遥控电路经常处于待机状态,仍在耗电。电视的音量和亮度都与耗电量成正比,音量或亮度越高,耗电量越大。
饮水机几乎常年通电,即使上班时间、休息时间也很少切断电源,如此一来,不仅费电,也会影响饮水机的正常使用。不用饮水机时,将其电源直接关闭,要使用时再开启。
在使用空调制冷时,安装加厚的窗帘,少开门窗,以减少阳光的照射和热气的影响。另外,要保持空调出气管畅通,并半个月清洗一次空调滤网,确保送风口通畅,降低因堵塞造成的损耗。
空调不用时应将电源插头拔掉,并打开门窗让空气保持流通。空调长期不清洗,不仅影响空调制冷,也损耗了空调的内部零件。
在同样亮度下,节能灯比白炽灯节约用电80%,而且寿命更长。看电视时,只开1瓦节电日光灯,既节约用电,收看效果又理想。还要做到人走灯灭,消灭“长明灯”。
同一台电风扇的最快挡与最慢挡的耗电量相差约40%,在快挡上使用1小时的耗电量可在慢挡上使用将近2小时。所以,常用慢速度,可减少电风扇的耗电量。
用电熨斗熨烫衣物时,在通电初始阶段先熨耐温较低的衣物,待温度升高后,再熨耐温较高的。断电后,再熨一部分耐温较低的衣物。
洗衣机洗涤时间的长短,要根据衣物的种类和脏污程度来决定。一般洗涤丝绸等精细衣物的时间可短些,洗涤棉、麻等粗厚织物的时间可稍长些。
如果用洗衣机漂洗,可以先把衣物上的肥皂水或洗衣粉泡沫拧干,再进行漂洗,既可以节约用电,也减少了漂清次数,达到节电的目的。更好等洗衣机尽量储满足够衣物后才使用。
电脑都具有绿色节电功能,可以设置休眠等待时间(一般设在15-30分钟之间)。短时间消耗电脑或者只用来听音乐时,可以将显示器亮度调到最暗或干脆关闭。
参考资料来源:百度百科—千瓦时
参考资料来源:百度百科—度
电源瓦数越大越费电吗?
这个很简单。找到你电脑随机附送的手册,查找电脑硬件配置。里面有功耗。看看功耗为多少瓦。再用瓦/1000*1=每小时的耗电度数。一般家用计算机整体功率为200w-100w不等。所以这样算来,每5小时基本上走1,2个字
当然是瓦数越大,费电量越大啦。
功率的单位是瓦,即每秒输出的功率,再乘以1秒,即每秒消耗的电量。在时间相同时,功和功率是成正比的。
瓦数越大越费电吗
定义下:家里电表走的那个字,1就代表1度电,什么叫1度电呢?1度电=1kW / h=1千瓦/ 每小时
根据你提供的数据,2*20=40W,那么计算下来,24个小时就是0.96度电
2*40*24=1.92度电
所以同等供电情况下,功率越大越耗电
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