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电阻比专题训练R1 :R2 = 2 :1 U1 :U2 = 2 :1 R1 :R2 :R3 = ?I2R3UR2I1R3U1U2UR1R1 :R2 = 2 :1 U1 = 4V U2 = 2V R1 :R2 :R3 = ?I2R3UR2I1R3U1U2UR1R1 :R2 = 2 :1 P1 :P3 = 2 :1 R1 :R2 :R3 = ?P3P1I2R3UR2I1R3U1U2UR1R1 :R2 = 2 :1 P1 = 0.8w P 3 = 0.4w R1 :R2 :R3 = ?P3P1I2R3UR2I1R3U1U2UR1R1 :R2 = 2 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2R1 :R2 = 2 :1 U1 :U2 = 2 :3 R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2R1 :R2 = 2 :1 U1 :U2 = 4 :3 R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2R1 :R2 = 2 :1 U1 = 4V U2 = 3V R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2R1 :R2 = 2 :1 I1 = 0.2 A I2 = 0.3 A R1 :R2 :R3 = ?I1R3UR1I2R3UR2R1 :R2 = 2 :1 P1 :P2 = 8 :9 R1 :R2 :R3 = ?P2P1I1R3UR1I2R3UR2R1 :R2 = 2 :1 P1 = 0.8w P 2 = 0.9w R1 :R2 :R3 = ?P2P1I1R3UR1I2R3UR2R1 :R3 = 2 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I1R3UR1I2R3UR2R1 :R3 = 2 :1 U1 :U2 = 2 :3 R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2R1 :R3 = 2 :1 U1 = 2V U2 = 3V R1 :R2 :R3 = ?I1R3U1UR1I2R3U2UR2同阻 异I U不变(UU类型)U1 :U2 =2 :1 U1 :U3 = 4 :3 R1 :R2 :R3 = ?I1R2U1U2UR1R3R2U3I2UU1 :U2 =2 :1 U3 :U2 = 1 :1 R1 :R2 :R3 = ?R1R2I1U1UR3R22UU3I2UU1 :U2 =2 :1 U2 :U2 = 2 :3 R1 :R2 :R3 = ?I1R2U1U2UR1R3R22UI2UU3 :U2 = 1 :1 U2 :U2 = 2 :3 R1 :R2 :R3 = ?R1R2U2I1UR3R22UU3I2UU3 :U2 = 1 :1 U1 :U3 = 4 :3 R1 :R2 :R3 = ?I1R2U1UR1I2R2U3UUR32(PP类型)P1 :P2 =2 :1 P1 :P3 = 8 :9 R1 :R2 :R3 = ?P2P1I1R2UR1I2R2UR3P3P1 :P2 =2 :1 P3 :P2 = 1 :1 R1 :R2 :R3 = ?P2P1I1R2UR1P2I2R2UR3P3P1 :P2 =2 :1 P2 :P2 = 4 :9 R1 :R2 :R3 = ?P2P1I1R2UR1P2I2R2UR3P3 :P2 = 1 :1 P2 :P2 = 8 :9 R1 :R2 :R3 = ?P2I1R2UR1P2I2R2UR3P3P3 :P2 = 1 :1 P1 :P3 = 8 :9 R1 :R2 :R3 = ?P1I1R2UR1P2I2R2UR3P3(UI类型)U1 :U2 = 2 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I2R2UR3I1R2U1U2UR1U3 :U2 = 1 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I1R2UR1I2R2UUR32U3U1 :U3 = 4 :3 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I1R2U1UR1I2R2U3UR1U1 :U2 = 4 :3 I1 :I2 = 2 :3 R1 :R2 :R3 = ?I1R2U1UR1I2R2UUR32U2 :U3 = 2 :3 I1 :I2 = 2 :3 R1 :R2 :R3 = ?R1R2U2I1UI2R2U3UR1(PI类型)P1 :P2 = 2 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?P2P1I1R2UR1I2R2UR3P3 :P2 = 1 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?P3I1R2UR1I2R2UR3P2P1 :P2 = 2 :1 I1 :I2 = 2 :3 R1 :R2 :R3 = ?P1I1R2UR1I2R2UR3P2P2 :P3 = 4 :9 I1 :I2 = 2 :3 R1 :R2 :R3 = ?P2PI1R2UR1I2R2UR3P3P1 :P3 = 8 :9 I1 :I2 = 2 :3 R1 :R2 :R3 = ?P1P3I1R2UR1I2R2UR3(PU类型)P1 :P2 =2 :1 U2 :U2 = 2 :3 R1 :R2 :R3 = ?P2P1I1R2U2UR1I2R2UUR32P1 :P2 =2 :1 U3 :U2 = 1 :1 R1 :R2 :R3 = ?P2P1I1R2UR1I2R2U3UUR32P1 :P2 =2 :1 U1 :U2 =4 :3 R1 :R2 :R3 = ?P2P1I1R2U1UR1I2R2UUR32P1 :P2 =2 :1 U1 :U2 =4 :3 R1 :R2 :R3 = ?P2P1I1R2U1UR1I2R2UUR32P1 :P2 =2 :1 U1 :U3 =4 :3 R1 :R2 :R3 = ?P2P1I1R2U1UR1I2R2U3UR3P2 :P2 =8 :9 U1 :U2 =2 :1 R1 :R2 :R3 = ?P2P2I1R2U1U2UR1I2R2UR3P2 :P2 =8 :9 U3 :U2 =1 :1 R1 :R2 :R3 = ?P2I1R2UR1I2R2U3UUR32P2P2 :P2 =8 :9 U1 :U3 =4 :3 R1 :R2 :R3 = ?I1R2U1UR1I2R2U3UR3P2P2P2 :P2 =8 :9 U2 :U3 =2 :3 R1 :R2 :R3 = ?P2I1R2U2UR1I2R2U3UR3P2P2 :P2 =8 :9 U1 :U2 =4 :3 R1 :R2 :R3 = ?P2I1R2U1UR1I2R2UUR32P2P1 :P3 =8 :9 U1 :U2 =2 :1 R1 :R2 :R3 = ?P1I1R2U1U2UR1I2R2P3UR3P1 :P3 =8 :9 U2 :U2 =2 :1 R1 :R2 :R3 = ?I1R2P1U2UR1I2R2P3UUR32P1 :P3 =8 :9 U2 :U2 =2 :3 R1 :R2 :R3 = ?P1I1R2U2UR1I2R2UUR32P3P1 :P3 =8 :9 U1 :U3 =2 :1 R1 :R2 :R3 = ?P1I1R2U1P3UR1I2R2U3UR3 P1 :P3 =8 :9 U1 :U2 =4 :3 R1 :R2 :R3 = ? P1I1R2U1UR1I2R2UUR32P3P1 :P3 =8 :9 U2 :U3 =2 :1 R1 :R2 :R3 = ?I1R2U2UR1P1P3R2U3UR3I2P2 :P3 =4 :9 U1 :U2 =2 :1 R1 :R2 :R3 = ?I1R2U1U2UR1P2I2R2UR3P3P2 :P3 =4 :9 U2 :U2 =2 :1 R1 :R2 :R3 = ?I1R2U2UR3P2I2R2UUR32P3I2R2UUR32P3I2R2UUR32P3P2 :P3 =4 :9 U3

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