1．为了使电炉消耗的电功率减小到原来的一半应 A．使通过电炉的电流强度减半b．使电炉两端的电压减半c．使电炉的电阻减半d．使电炉的电阻和 Sketch Coloring Page

1．为了使电炉消耗的电功率减小到原来的一半应 A．使通过电炉的电流强度减半b．使电炉两端的电压减半c．使电炉的电阻减半d．使电炉的电阻和 Template

Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com

please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

sketch #643 Happy Valentines

Tom Kelly
sketch #643 Happy Valentines

sketch #2678 Portrait by Jocelyn Alejandra Rantul

Jocelyn Alejandra Rantul
sketch #2678 Portrait by Jocelyn Alejandra Rantul

sketch #4659 Ozzy Osbourne by Piter Olimpo

anonymous

anonymous
sketch #4659 Ozzy Osbourne by Piter Olimpo

sketch #4091 Irie

anonymous

anonymous
sketch #4091 Irie

sketch #4751 Ruko by Rodrigo Marcos

anonymous

anonymous
sketch #4751 Ruko by Rodrigo Marcos

sketch #929 tree stump

anonymous

anonymous
sketch #929 tree stump

sketch #3538

anonymous

anonymous
sketch #3538

sketch #2735

Jorge Valero
sketch #2735

sketch #251

Tom Kelly
sketch #251

sketch #5221

anonymous

anonymous
sketch #5221

sketch #3743 Just for fun

Jay Lantz
sketch #3743 Just for fun

sketch #5141

anonymous

anonymous
sketch #5141

sketch #4310 robot

anonymous

anonymous
sketch #4310 robot

sketch #1169 ENJOY IT!!!!!!!! OH NO EAT IT OR IT WILL MELT!!!!! :0

anonymous

anonymous
sketch #1169 ENJOY IT!!!!!!!! OH NO EAT IT OR IT WILL MELT!!!!! :0

sketch #3444 PSY by Melodee Ripepi

anonymous

anonymous
sketch #3444 PSY by Melodee Ripepi

sketch #5436

anonymous

anonymous
sketch #5436

sketch #1500

anonymous

anonymous
sketch #1500

sketch #3264 Lisa by Shaban Khan

anonymous

anonymous
sketch #3264 Lisa by Shaban Khan

sketch #2699 Girl in shades Ashok Kumar Chaturvedi

Ashok Kumar Chaturvedi
sketch #2699 Girl in shades Ashok Kumar Chaturvedi

sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

anonymous

anonymous
sketch #5135 &#;Hypno Colorfull&#; by Lars Tunebo

sketch #4301

Ainhoa White
sketch #4301

sketch #1118 easy zombie

anonymous

anonymous
sketch #1118 easy zombie

sketch #2035 Ernest Hemingway...
chayrolfrypan

anonymous

anonymous
sketch #2035 Ernest Hemingway... chayrolfrypan

sketch #1697

Abdul Kaium Alamgir
sketch #1697

sketch #3779 RIP Hugo Chavez Joey Hyuuga

anonymous

anonymous
sketch #3779 RIP Hugo Chavez Joey Hyuuga

sketch #5052 Gorillaz by Rafał Dawid

anonymous

anonymous
sketch #5052 Gorillaz by Rafał Dawid

sketch #5128 Italo Italo Abreu Jack Supple

anonymous

anonymous
sketch #5128 Italo Italo Abreu Jack Supple

sketch #4939 Zelda by Jeanie Wagenknecht

anonymous

anonymous
sketch #4939 Zelda by Jeanie Wagenknecht

sketch #1043 Deadoo..

Cherie N Patanao
sketch #1043 Deadoo..

sketch #4665 Iron Maiden EDDIE by Jenna Khoùlix�

anonymous

anonymous
sketch #4665 Iron Maiden EDDIE by Jenna Khoùlix�

tomski1．为了使电炉消耗的电功率减小到原来的一半应 a．使通过电炉的电流强度减半b．使电炉两端的电压减半c．使电炉的电阻减半d．使电炉的电阻和 coloring

为了使某电炉消耗的功率减为原来的下列办法能用的是 A．将电阻减为原来的一半电压不变B．将电压电阻都减为原来的一半C．使电压减为原来的 sketch template

1．为了使电炉消耗的电功率减小到原来的一半应 A．使通过电炉的电流强度减半B．使电炉两端的电压减半C．使电炉的电阻减半D．使电炉的电阻和 sketch template

为了使电炉消耗的电功率减小到原来的一半应该采用的措施是 A．使电流减半B．使电压减半C．使电炉的电阻减半D．使电压和电炉的电阻各减一半 sketch template

图20所示电路中电源电压保持不变当�片P�至A端闭合开关S1和S2时电流表的示数为I1电压表的示数为U1当�片P�至A端只闭合 sketch template

计算电功率的物理公式有哪些？知乎 sketch template

电功率 快懂百� sketch template

27．在图甲所示电路中电源电压3V恒定不变R1=5Ω当�动变阻器R2最大阻值大于R1接入电路的阻值增大时R2消耗的电功率如何变化� sketch template

某�技小组的同学们设计制作了一个多档位电热器模型为了分析接入电路的电阻对电热器电功率的影响他们将电表接入电路中如图所示．当只闭合开关S1 sketch template

如图甲所示电路中R0为定值电阻R1为�动变阻器．图乙是该�动变阻器消耗的电功率与电流关系的图象．则该�动变阻器的最大值是 Ω当�片P移动 sketch template

题目灯泡的额定电压为36V通过它的电流随其两端电压变化的关系图线如图甲所示1灯泡正常�光时通过灯丝的电流为 A2将若干个此 sketch template

某电压力锅额定电压为220 V加热功率为1 100 W保温功率为100 W1 在使用电压力锅时应选用线插座其在加热状态下�热体 sketch template

王强同学在学习欧姆定律和电功率后推导出计算电阻消耗的电功率公式P=I2R和P=U2R．他认为前一公式表明电功率与电阻成正比后一公式表示电 sketch template

如图所示电源电压为3VR2=10Ω．开关闭合时通过R1的电流为02A．求1R1的电阻2通过R2的电流3电路的总功率 sketch template

1．电功和电功率的区别和联系如下表项目 电功 电功率 概念电能转化为其它形式的能单位时间内消耗的电能 ——青夏教育精英家教�—— sketch template

如图所示电源电动势为E内阻为r电路中的R2R3分别为总阻值一定的�动变阻器R0为定值电阻R1为光敏电阻其电阻随光照强度增大而减小 sketch template

图所示的电路中电源两端电压U保持不变当只闭合开关S1时电压表的示数为U1电流表的示数I1为1A电阻R1消耗的电功率P1为4W电阻R2 sketch template

如图甲所示电路中电源两端电压保持不变R0为定值电阻R1为�动变阻器．图乙是该�动变阻器消耗的电功率与电流关系的图象．求1当电路中 sketch template

下表是小红和晓伟同学在做“研究电阻消耗的电功率与电阻阻值之间关系 的实验时记录的一部分实验数据．请根据表中数据归纳电功率P与电阻R的关系在 sketch template

11．如图所示电阻R1=8Ω直流电动机的内电阻R2=2Ω当电键S断开时电阻R1消耗的电功率为288W电源的效率为80%当电键S sketch template

题目图1所示的电路中R1为定值电阻R2为�动变阻器电源电压为3V且保持不变闭合开关S后�片P从b端移动到a端的过程电压表示数U sketch template

如图所示电路中电压U保持不变电流表的示数为1A如果R1与R2的等效电阻为R并且R1R=53电阻R2消耗的电功率为24W则电阻 sketch template

有一只灯炮标有“6V6W 的字样现只有电压为8V的电源．1要使灯炮正常工作需要在电路中串联一个多大电阻这只电阻的电功率是多� sketch template

如图是小华同学探究“电流与电压关系”的电路图。 sketch template

如图所示的电路中E为电源R0为定值电阻R1为光敏电阻其电阻随光照强度增大而减小R2R3为�动变阻器C为平行板电容器．当开关S sketch template

在如图甲所示的电路中电源电动势为30V内阻不计L1L2L3为3个特殊材料制成的相同规格小灯泡这种小灯泡的伏安特性曲线如图乙所示 sketch template

题目如下图甲所示电路电源电压为30V灯L1L2L3为三个相同规格的小灯泡这种小灯泡的电流与加在其两端电压的关系如图乙所示当 sketch template

一轮复习：电源最大输出功率 知乎 sketch template

题目如图甲所示理想变压器原副线圈匝数比为31理想电压表读数为55V灯泡L1的功率为55Wab端输入稳定的交变电压如图乙所示 sketch template

小阳同学在�技月制作了一个多档位电热器模型．为了分析接入电路的电阻对电热器的电功率的影响他将电表接入电路中其电路如图所示电源两端电压不变 sketch template

题目如图甲所示的电路中R0为定值电阻R1为�动变阻器其最大阻值为40Ω闭合开关后当�动变阻器的�片P从a端移至b端的过程中 sketch template

1．在如图所示的电路中R1=R2=R3在ac间和bc间均接有用电器且用电器均正常工作设R1R2R3上消耗的功率分别为P1P2 sketch template

在图8所示的电路中电源两端电压保持不变闭合开关后当�动变阻器的�片由中点�右移动时下列判断中正确的是 A．电流表和电压表的示数都增大 sketch template

电功率 Word文档在线阅读与下载无忧文档 sketch template

如图所示直流电动机与可变电阻R并联路端电压U恒定调节R 使两个支路中的电流强度相等则可知 A．两个支路中的电阻相等B．两支路两端的 sketch template

图所示的电路中电源两端电压U保持不变当只闭合开关S1时电压表的示数为U1电流表的示数I1为1A电阻R1消耗的电功率P1为4W电阻R2 sketch template

free web stats