【单选题】【消耗次数:1】
在交流电路中,电阻元件上电流与电压之间的相位关系是( )。
电流与电压同相
电流超前电压90°
电压超前电流90°
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相关题目
【单选题】 在电阻元件的交流电路中,电压和电流的相位
①  相同
②  电压的相位比电流的相位超前90°
③  电压的相位比电流的相位落后90°
④  不确定
【单选题】 在电感元件的交流电路中,电压和电流的相位
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②  电压的相位比电流的相位超前90°
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【单选题】 纯电感正弦交流电路中,电压的有效值等于电流的有效值与感抗的乘积,在相位上电压比电流( )。
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【判断题】 电容元件上的电压在相位上滞后电流90°。
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