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51问答网 > 变压器原副线圈中电流变化是怎样的？

变压器原副线圈中电流变化是怎样的？

2025-04-07 00:22:04

推荐回答（2个）

回答1：

∵变压器原副线圈的功率：P1＝P2
∴I1U1＝I2U2(或I1N1＝I2N2或I1/I2＝N2/N1)
∴变压器原副线圈中电流是同大同小的。

回答2：

首先，变压器的原副线圈中能量守恒，即U1I1=U2I2
因为，U1：U2=n1：n2
所以，I1：I2=n2：n1
n1，n2为原副线圈匝数

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