【单选题】【消耗次数：1】
雷电放电具有（ ）的特点。
①
电流小，电压高
②
电流大，电压高
③
电流大，电压低?
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相关题目
【单选题】
电压继电器线圈与电流继电器线圈相比，具有的特点是
①
电压继电器线圈与被测线路串联。
②
电压继电器线圈的匝数多，导线细，电阻大。
③
电压继电器线圈的匝数少，导线粗，电阻小。
④
电压继电器线圈的匝数少，导线粗，电阻大。
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