如图所示t为理想变压器副线圈回路中的输电线ab和cd的电阻不可忽略其余输电线电阻可不计则当开关s闭合时 A．交流电压表v3的示数变 Sketch Coloring Page

如图所示t为理想变压器副线圈回路中的输电线ab和cd的电阻不可忽略其余输电线电阻可不计则当开关s闭合时 A．交流电压表v3的示数变 Template

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tomski如图所示t为理想变压器副线圈回路中的输电线ab和cd的电阻不可忽略其余输电线电阻可不计则当开关s闭合时 a．交流电压表v3的示数变 coloring

如图所示，理想变压器输入电压为u=220√2sin 100π V，原、副线圈的匝数之比为n 1：n 2=101，各电表均为理想电表 sketch template

中学电学之理想变压器 知乎 sketch template

如图所示，理想变压器的原、副线圈匝数比，原线圈电路高途 sketch template

如图所示理想变压器原线圈中输入电压U1＝3300V副线圈两端电压U2为220V输出端连有完全相同的两个灯泡L1和L2绕过铁芯的导线所接 sketch template

如图所示理想变压器原线圈匝数为n1两个副线圈匝数分别为n2和n3且n1n2n3=421输入电压U1=16VR1=R2=10Ω sketch template

如图所示为一理想变压器其原线圈匝数n1=800匝副线圈匝数n2=200匝原线圈电压u=200$sqrt{2}$sin100πtV sketch template

如图所示理想变压器原副线圈匝数之比n1∶n2＝4∶1原线圈两端连接光�导轨副线圈与电阻R相连组成闭合回路．当直导线AB在匀强磁场中沿 sketch template

如图所示理想变压器原副线圈的匝数比为10lb是原线圈的一个抽头电压表和电流表均为理想电表从某时刻开始在原线圈两端加上交变电压u1 sketch template

如图所示理想变压器原副线圈的匝数比为101b是原线圈的中心接头电压表V和电流表A均为理想电表除�动变阻器电阻R以外其余电阻均不计 sketch template

18．如图4所示理想变压器的线圈匝数分别为n1=2200匝n2=600匝n3=3700匝已知交流电表A2示数为05AA3示数为0 sketch template

如图所示理想变压器的原副线圈匝数比为15原线圈两端的交变电压为 氖泡在两端电压达到100V时开始�光下列说法中正确的有 A sketch template

如图所示一理想变压器当原线圈两端接U1=220V的正弦式交变电压时副线圈两端的电压U2=55V．则可以判断原副线圈的匝数之比为 A sketch template

如图所示理想交流电表与理想变压器原线圈相连副线圈中有R1R2R3交流电流表和开关S．初始开关S断开原线圈接稳定的交变电压下列说法 sketch template

如图所示的电路中理想变压器原副线圈的匝数比n1∶n2=22∶5电阻R1=R2=25ΩD为理想二极管原线圈接u=220 sketch template

如图所示理想变压器原副线圈匝数比为12两端分别接有四个阻值相同的灯泡已知4盏灯均能正常�光则L1和L2的功率之比为 A．11B sketch template

如图所示电路中的变压器为理想变压器S为单刀双掷开关P是�动变阻器R的�动触头U1 为加在原线圈两端的交变电压I1I2 分别为原线圈和 sketch template

如图所示理想变压器有两个副线圈匝数分别为和所接负载当只闭合时．电流表示数为lA当和都 闭合时电流表示数为2A则为A11 sketch template

如图所示理想变压器原副线圈的匝数之比为101在原线圈两端加上交变电压U=220sin100πtV时灯泡L1L2均正常�光其中 sketch template

如图所示理想变压器的输出端有三组次级线圈分别接有电阻元件R电感元件L和电容元件C．若MN供电电压瞬时值为u1=Umsinω1t时用 sketch template

如图所示理想变压器原线圈两端接正弦交变电压副线圈两端通过输电线接一只灯泡和一只�动变阻器输电线的电阻不计在图示状态当�动片P�上�动 sketch template

如图所示理想变压器的输入端电压 U=311sin100πtV原副线圈的匝数之比为n1n2=101若图中电流表读数为 2A则 sketch template

如图所示理想变压器初级线圈接一正弦式交变电流交变电流的电压有效值恒定不变．则下列说法中正确的是 A．只将S1从2拨�1时电流表示数变 sketch template

如图所示理想变压器原副线圈匝数为n1n2=41原线圈回路中的电阻A与副线圈回路中的负载电阻B的阻值相等．ab端加一定交变电压后 sketch template

一个理想变压器的线圈绕�如图甲所示．原线圈输入电流的i t图象如图乙所示第1s内电流方�在图甲中已标出则 A．灯泡中的电流变化�期为 sketch template

4．如图所示理想变压器的副线圈上通过输电线接有两个相同的灯泡L1和L2输电线的等效电阻为R开始时开关S断开当S接通时以下说法正确的 sketch template

如图所示理想变压器原线圈输入交变电流i=Imsinωt副线圈接有一电流表和负载电阻R电流表的示数为010A 在t=T/4时T为交 sketch template

如图所示理想变压器的原线圈两端ab接稳定的交流电源将开关S闭合时下列说法正确的是A电压表V的示数减小B电压表V的示数不变C电流表 sketch template

如图所示一理想变压器原线圈匝数n1＝1000匝副线圈匝数n2＝200匝原线圈中接一交变电源交变电源电压u＝220sin 100πtV sketch template

如图所示一理想变压器原副线圈匝数比为41图中五只电灯完全相同若BCDE都能正常�光则A灯 A．一定能正常�光B．比正常�光 sketch template

如图所示为远距离输电的原理图升压变压器的变压比为m降压变压器的变压比为n输电线的电阻为R升压变压器和降压变压器均为理想变压器�电厂 sketch template

8．如图10 5所示理想变压器原线圈ab两端接正弦式电压副线圈cd两端通过输电线接两只相同的灯泡输电线的等效电阻为R在图示状态 sketch template

如图甲所示理想变压器两个线圈的匝数比n1n2=12ab两端加上如图乙所示的交流电cd两端接一个可变电阻R．下列说法正确的是 sketch template

如图所示理想变压器原线圈输入交变电流i＝Imsinωt副线圈接有一电流表和负载电阻R电流表的示数为010A 在t＝T/4时T为交 sketch template

如图所示理想变压器的原副线圈匝数比为15原线圈两端的交变电压为 氖泡在两端电压达到100V时开始�光下列说法中正确的有 A．开关接通 sketch template

如图所示理想变压器原副线圈匝数n1∶n2∶n3=3∶2∶1副线圈Ⅱ上接有“8 V8 W 的灯泡L1L2副线圈Ⅲ上接有“6 V9 sketch template

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