Using the multimeter, measure and record the rms values of the input as well as the output (volts) in table E2-2.
用万能表测量并记下表E2-2中输入量和输出量的有效值（伏特数）。
Such a motor can produce a transient overvoltage, reaching many thousands of volts, when the normal rms current is interrupted.
当通常的均方根电流被打断，这样的一个电机可以产生一个可达几千伏的电涌过压。
Such a motor can produce a transient overvoltage, reaching many thousands of volts, when the normal rms current is interrupted.
当通常的均方根电流被打断，这样的一个电机可以产生一个可达几千伏的电涌过压。
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